From bfa75b18240f73c36ec8c0c49274d3fd8433ea04 Mon Sep 17 00:00:00 2001
From: Philip Sargent <philip.sargent@gmail.com>
Date: Sat, 29 Jun 2024 09:23:52 +0300
Subject: [PATCH] Remove (Required) in cave_data fields on caveslug field
 comment

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 cave_data/1623-98.html               | 2 +-
 cave_data/1623-A1.html               | 2 +-
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 cave_data/1623-B2.html               | 2 +-
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 cave_data/1623-B5.html               | 2 +-
 cave_data/1623-B6.html               | 2 +-
 cave_data/1623-BS1-15.html           | 2 +-
 cave_data/1623-BS16.html             | 2 +-
 cave_data/1623-BS18.html             | 2 +-
 cave_data/1623-BS19.html             | 2 +-
 cave_data/1623-BS20.html             | 2 +-
 cave_data/1623-Blaubeer.html         | 2 +-
 cave_data/1623-Haldenloch.html       | 2 +-
 cave_data/1623-Juttahoehle.html      | 2 +-
 cave_data/1623-LA26.html             | 2 +-
 cave_data/1623-LA27.html             | 2 +-
 cave_data/1623-LA30.html             | 2 +-
 cave_data/1623-LA35.html             | 2 +-
 cave_data/1623-LA37.html             | 2 +-
 cave_data/1623-LA38.html             | 2 +-
 cave_data/1623-LA40.html             | 2 +-
 cave_data/1623-rentner.html          | 2 +-
 cave_data/1624-1.html                | 2 +-
 cave_data/1624-120.html              | 2 +-
 cave_data/1624-122.html              | 2 +-
 cave_data/1624-138.html              | 2 +-
 cave_data/1624-162.html              | 2 +-
 cave_data/1624-170.html              | 2 +-
 cave_data/1624-190.html              | 2 +-
 cave_data/1626-10.html               | 2 +-
 cave_data/1626-101.html              | 2 +-
 cave_data/1626-102.html              | 2 +-
 cave_data/1626-111.html              | 2 +-
 cave_data/1626-117.html              | 2 +-
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 cave_data/1626-120.html              | 2 +-
 cave_data/1626-122.html              | 2 +-
 cave_data/1626-13.html               | 2 +-
 cave_data/1626-154.html              | 2 +-
 cave_data/1626-155.html              | 2 +-
 cave_data/1626-16.html               | 2 +-
 cave_data/1626-187.html              | 2 +-
 cave_data/1626-2.html                | 2 +-
 cave_data/1626-2018-AD-02.html       | 2 +-
 cave_data/1626-2018-DM-01.html       | 2 +-
 cave_data/1626-2018-DM-02.html       | 2 +-
 cave_data/1626-2018-DM-03.html       | 2 +-
 cave_data/1626-2018-DM-04.html       | 2 +-
 cave_data/1626-2018-DM-05.html       | 2 +-
 cave_data/1626-2018-DM-06.html       | 2 +-
 cave_data/1626-2018-ad-03.html       | 2 +-
 cave_data/1626-2018-ms-02.html       | 2 +-
 cave_data/1626-2018-ms-03.html       | 2 +-
 cave_data/1626-2018-ms-04.html       | 2 +-
 cave_data/1626-2018-pw-01.html       | 2 +-
 cave_data/1626-2018-pw-02.html       | 2 +-
 cave_data/1626-2018-pw-03.html       | 2 +-
 cave_data/1626-2018-tk-01.html       | 2 +-
 cave_data/1626-2018-tk-02.html       | 2 +-
 cave_data/1626-2019-HT-01.html       | 2 +-
 cave_data/1626-2019-HT-02.html       | 2 +-
 cave_data/1626-2019-rh-01.html       | 2 +-
 cave_data/1626-2019-rh-02.html       | 2 +-
 cave_data/1626-202.html              | 2 +-
 cave_data/1626-2023-BL-01.html       | 2 +-
 cave_data/1626-2023-BL-02.html       | 2 +-
 cave_data/1626-2023-BL-03.html       | 2 +-
 cave_data/1626-2023-BL-04.html       | 2 +-
 cave_data/1626-2023-BL-05.html       | 2 +-
 cave_data/1626-2023-BL-06.html       | 2 +-
 cave_data/1626-2023-BL-07.html       | 2 +-
 cave_data/1626-2023-BL-08.html       | 2 +-
 cave_data/1626-2023-BL-09.html       | 2 +-
 cave_data/1626-2023-BuzzardHole.html | 2 +-
 cave_data/1626-2023-ww-01.html       | 2 +-
 cave_data/1626-203.html              | 2 +-
 cave_data/1626-205.html              | 2 +-
 cave_data/1626-207.html              | 2 +-
 cave_data/1626-257.html              | 2 +-
 cave_data/1626-27.html               | 2 +-
 cave_data/1626-29.html               | 2 +-
 cave_data/1626-3.html                | 2 +-
 cave_data/1626-33.html               | 2 +-
 cave_data/1626-354.html              | 2 +-
 cave_data/1626-359.html              | 2 +-
 cave_data/1626-361.html              | 2 +-
 cave_data/1626-40.html               | 2 +-
 cave_data/1626-46.html               | 2 +-
 cave_data/1626-49.html               | 2 +-
 cave_data/1626-5.html                | 2 +-
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 cave_data/1626-52.html               | 2 +-
 cave_data/1626-55.html               | 2 +-
 cave_data/1626-7.html                | 2 +-
 cave_data/1626-71.html               | 2 +-
 cave_data/1626-8.html                | 2 +-
 cave_data/1626-9.html                | 2 +-
 cave_data/1626-E02.html              | 2 +-
 cave_data/1626-E09.html              | 2 +-
 cave_data/1626-E16.html              | 2 +-
 cave_data/1626-E28.html              | 2 +-
 cave_data/1626-LA11.html             | 2 +-
 cave_data/1626-LA12.html             | 2 +-
 cave_data/1626-LA34.html             | 2 +-
 cave_data/1626-Loutotihoehle.html    | 2 +-
 cave_data/1626-casino.html           | 2 +-
 cave_data/1626-upside-down.html      | 2 +-
 cave_data/1627-702.html              | 2 +-
 cave_data/1627-703.html              | 2 +-
 cave_data/1627-706.html              | 2 +-
 cave_data/1627-729.html              | 2 +-
 cave_data/1627-734.html              | 2 +-
 cave_data/1627-736.html              | 2 +-
 cave_data/1627-737.html              | 2 +-
 cave_data/1627-738.html              | 2 +-
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 cave_data/1627-742.html              | 2 +-
 cave_data/1627-796.html              | 2 +-
 cave_data/1627-798.html              | 2 +-
 577 files changed, 577 insertions(+), 577 deletions(-)

diff --git a/cave_data/1623-000.html b/cave_data/1623-000.html
index 6d2a25470..ba6a5f3d9 100644
--- a/cave_data/1623-000.html
+++ b/cave_data/1623-000.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-000</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-000</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwarzmoosk&ouml;gelsystem</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1.html b/cave_data/1623-1.html
index b4f5849d4..77932becc 100644
--- a/cave_data/1623-1.html
+++ b/cave_data/1623-1.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Li&auml;gerh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/(W) +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-10.html b/cave_data/1623-10.html
index 7bff605e5..c920c0093 100644
--- a/cave_data/1623-10.html
+++ b/cave_data/1623-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Spalth&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-100.html b/cave_data/1623-100.html
index d84a6b401..3ef5e4b0f 100644
--- a/cave_data/1623-100.html
+++ b/cave_data/1623-100.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-100</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-100</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 100</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-103.html b/cave_data/1623-103.html
index 1d2540151..020436800 100644
--- a/cave_data/1623-103.html
+++ b/cave_data/1623-103.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-103</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-103</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 103</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-105.html b/cave_data/1623-105.html
index 893df3829..15625270d 100644
--- a/cave_data/1623-105.html
+++ b/cave_data/1623-105.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-105</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-105</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 105</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-106.html b/cave_data/1623-106.html
index 0d2d454de..447cc0c43 100644
--- a/cave_data/1623-106.html
+++ b/cave_data/1623-106.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-106</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-106</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Eislufth&ouml;hle(106)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-107.html b/cave_data/1623-107.html
index cc79797ae..e175c374d 100644
--- a/cave_data/1623-107.html
+++ b/cave_data/1623-107.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-107</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-107</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gemsh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>4/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-108.html b/cave_data/1623-108.html
index 521958df5..8682eca9c 100644
--- a/cave_data/1623-108.html
+++ b/cave_data/1623-108.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-108</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-108</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 108</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-109.html b/cave_data/1623-109.html
index d5d446af9..6b51a5f9e 100644
--- a/cave_data/1623-109.html
+++ b/cave_data/1623-109.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-109</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-109</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa-Schacht 109</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-11.html b/cave_data/1623-11.html
index a5ac53bcd..6774a7d28 100644
--- a/cave_data/1623-11.html
+++ b/cave_data/1623-11.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-11</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-11</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hle in der Loserwestwand 1</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-110.html b/cave_data/1623-110.html
index 443ec8fb4..3fd630b6c 100644
--- a/cave_data/1623-110.html
+++ b/cave_data/1623-110.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-110</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-110</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kein Hubschrauber H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-111.html b/cave_data/1623-111.html
index bb1211027..7e0d5bdaf 100644
--- a/cave_data/1623-111.html
+++ b/cave_data/1623-111.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-111</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-111</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 111</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-112.html b/cave_data/1623-112.html
index a872c6e9c..5b28a5fa0 100644
--- a/cave_data/1623-112.html
+++ b/cave_data/1623-112.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-112</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-112</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 112</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-113.html b/cave_data/1623-113.html
index e11ba027e..0586de202 100644
--- a/cave_data/1623-113.html
+++ b/cave_data/1623-113.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-113</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-113</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Sonnenstrahlh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>4/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-114.html b/cave_data/1623-114.html
index 6198fafd2..c1453c600 100644
--- a/cave_data/1623-114.html
+++ b/cave_data/1623-114.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-114</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-114</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Verlorenhohle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1T/+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-115.html b/cave_data/1623-115.html
index 64883eaae..62cd198be 100644
--- a/cave_data/1623-115.html
+++ b/cave_data/1623-115.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-115</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-115</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schnellzugh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>6/t/S/W x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-116.html b/cave_data/1623-116.html
index 0c41240d5..505e56aca 100644
--- a/cave_data/1623-116.html
+++ b/cave_data/1623-116.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-116</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-116</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kleine Eish&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/t/S/E +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-117.html b/cave_data/1623-117.html
index 96c51a355..971bbac68 100644
--- a/cave_data/1623-117.html
+++ b/cave_data/1623-117.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-117</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-117</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Stuttgarter-Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T/S/ +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-118.html b/cave_data/1623-118.html
index b247da69e..6c86c9d48 100644
--- a/cave_data/1623-118.html
+++ b/cave_data/1623-118.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-118</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-118</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa-Schacht 118</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-119.html b/cave_data/1623-119.html
index 0b78cbf86..dc3a9fdec 100644
--- a/cave_data/1623-119.html
+++ b/cave_data/1623-119.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-119</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-119</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa-Schacht 119</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-12.html b/cave_data/1623-12.html
index 99463081b..333702fb0 100644
--- a/cave_data/1623-12.html
+++ b/cave_data/1623-12.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-12</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-12</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hle in der Loserwestwand 2</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/T -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-120.html b/cave_data/1623-120.html
index 5a19afdf6..ee529ee41 100644
--- a/cave_data/1623-120.html
+++ b/cave_data/1623-120.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-120</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-120</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa-Schacht 120</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-125.html b/cave_data/1623-125.html
index 81fc676b3..5850268e8 100644
--- a/cave_data/1623-125.html
+++ b/cave_data/1623-125.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-125</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-125</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Feierabendschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-126.html b/cave_data/1623-126.html
index 916907980..ffc258d8c 100644
--- a/cave_data/1623-126.html
+++ b/cave_data/1623-126.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-126</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-126</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tunnel Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-127.html b/cave_data/1623-127.html
index c62c7e158..a60d57f13 100644
--- a/cave_data/1623-127.html
+++ b/cave_data/1623-127.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-127</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-127</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kleine Firnh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-128.html b/cave_data/1623-128.html
index 38c7d7c64..c4f95574a 100644
--- a/cave_data/1623-128.html
+++ b/cave_data/1623-128.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-128</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-128</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Enttauschungsschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-129.html b/cave_data/1623-129.html
index 9315b130f..a2d5a6209 100644
--- a/cave_data/1623-129.html
+++ b/cave_data/1623-129.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-129</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-129</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gro&szlig;e Firnh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-13.html b/cave_data/1623-13.html
index 4f976889b..8037d64fb 100644
--- a/cave_data/1623-13.html
+++ b/cave_data/1623-13.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-13</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-13</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Knochenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-130.html b/cave_data/1623-130.html
index 2d29766be..360b0f987 100644
--- a/cave_data/1623-130.html
+++ b/cave_data/1623-130.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-130</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-130</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>C&auml;cilien-Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-131.html b/cave_data/1623-131.html
index 0e841f0dc..80c53fb6d 100644
--- a/cave_data/1623-131.html
+++ b/cave_data/1623-131.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-131</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-131</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Thomas-Eish&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/E/S x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-132.html b/cave_data/1623-132.html
index f389f7ab1..dd28a00fd 100644
--- a/cave_data/1623-132.html
+++ b/cave_data/1623-132.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-132</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-132</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tropfsteinh&ouml;hle am Augsteck</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-133.html b/cave_data/1623-133.html
index 75a082dc4..69b5da05b 100644
--- a/cave_data/1623-133.html
+++ b/cave_data/1623-133.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-133</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-133</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Unterstandh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-134.html b/cave_data/1623-134.html
index 01e0fd119..028b6e90e 100644
--- a/cave_data/1623-134.html
+++ b/cave_data/1623-134.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-134</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-134</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hlenruine bei der Wasserstelle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-135.html b/cave_data/1623-135.html
index c5d3ee5d1..5942b70c3 100644
--- a/cave_data/1623-135.html
+++ b/cave_data/1623-135.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-135</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-135</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 135</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-136.html b/cave_data/1623-136.html
index 407dc14ad..c470fa36b 100644
--- a/cave_data/1623-136.html
+++ b/cave_data/1623-136.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-136</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-136</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Steinschlagschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-137.html b/cave_data/1623-137.html
index 33bcb7eca..218fad224 100644
--- a/cave_data/1623-137.html
+++ b/cave_data/1623-137.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-137</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-137</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 137</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-138.html b/cave_data/1623-138.html
index f826e2f68..545135fa2 100644
--- a/cave_data/1623-138.html
+++ b/cave_data/1623-138.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-138</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-138</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 138</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-139.html b/cave_data/1623-139.html
index b341eb6f5..e5a17da4a 100644
--- a/cave_data/1623-139.html
+++ b/cave_data/1623-139.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-139</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-139</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 139</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-14.html b/cave_data/1623-14.html
index 43c438c0d..11c030730 100644
--- a/cave_data/1623-14.html
+++ b/cave_data/1623-14.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-14</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-14</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schafkirche</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-140.html b/cave_data/1623-140.html
index 98bf0fc4a..21d15e695 100644
--- a/cave_data/1623-140.html
+++ b/cave_data/1623-140.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-140</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-140</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 140</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S x </kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-141.html b/cave_data/1623-141.html
index fd545ecb1..ee9431e7b 100644
--- a/cave_data/1623-141.html
+++ b/cave_data/1623-141.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-141</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-141</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa H&ouml;hle 141</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-142.html b/cave_data/1623-142.html
index 2c880eb7e..f1f50cdea 100644
--- a/cave_data/1623-142.html
+++ b/cave_data/1623-142.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-142</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-142</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa H&ouml;hle 142</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>6/T/S x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-143.html b/cave_data/1623-143.html
index 7eb34ce1c..2c2660f86 100644
--- a/cave_data/1623-143.html
+++ b/cave_data/1623-143.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-143</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-143</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Wei&szlig;e Warze Schacht I</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>3/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-144.html b/cave_data/1623-144.html
index dff35920c..61032609b 100644
--- a/cave_data/1623-144.html
+++ b/cave_data/1623-144.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-144</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-144</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tony's Second H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>6/S/T x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-146.html b/cave_data/1623-146.html
index cafe09899..10576e7a7 100644
--- a/cave_data/1623-146.html
+++ b/cave_data/1623-146.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-146</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-146</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tobogganschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-147.html b/cave_data/1623-147.html
index 2fd883632..05aa2b13d 100644
--- a/cave_data/1623-147.html
+++ b/cave_data/1623-147.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-147</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-147</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa H&ouml;hle 147</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-149.html b/cave_data/1623-149.html
index 2819e4c4a..211d15fd2 100644
--- a/cave_data/1623-149.html
+++ b/cave_data/1623-149.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-149</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-149</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 149</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-15.html b/cave_data/1623-15.html
index f7fb02822..516153b28 100644
--- a/cave_data/1623-15.html
+++ b/cave_data/1623-15.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-15</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-15</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Michel-Gang</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/(W) +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-150.html b/cave_data/1623-150.html
index c8477c1ce..c94c7600b 100644
--- a/cave_data/1623-150.html
+++ b/cave_data/1623-150.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-150</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-150</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa R&ouml;hrh&ouml;hle 150</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-151.html b/cave_data/1623-151.html
index 109d15229..854641b0d 100644
--- a/cave_data/1623-151.html
+++ b/cave_data/1623-151.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-151</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-151</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa H&ouml;hle 151</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-152.html b/cave_data/1623-152.html
index 6ba23f9b0..3d69bd551 100644
--- a/cave_data/1623-152.html
+++ b/cave_data/1623-152.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-152</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-152</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Bananeh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>4/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-153.html b/cave_data/1623-153.html
index de700e549..c272abc46 100644
--- a/cave_data/1623-153.html
+++ b/cave_data/1623-153.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-153</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-153</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 153</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-154.html b/cave_data/1623-154.html
index d5d915571..a11963654 100644
--- a/cave_data/1623-154.html
+++ b/cave_data/1623-154.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-154</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-154</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 154</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-155.html b/cave_data/1623-155.html
index 6fb755095..a07ec89ad 100644
--- a/cave_data/1623-155.html
+++ b/cave_data/1623-155.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-155</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-155</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Unerforscht Schacht 155</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-157.html b/cave_data/1623-157.html
index 1ce9838d3..5e26f1f21 100644
--- a/cave_data/1623-157.html
+++ b/cave_data/1623-157.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-157</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-157</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Pirat Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><area>1c</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-158.html b/cave_data/1623-158.html
index 0b051f4a2..461e0b3e8 100644
--- a/cave_data/1623-158.html
+++ b/cave_data/1623-158.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-158</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-158</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Donner und Blitzen H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>3/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-16.html b/cave_data/1623-16.html
index 51b71a01f..a16de70c0 100644
--- a/cave_data/1623-16.html
+++ b/cave_data/1623-16.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-16</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-16</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Pauli-Loch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-160.html b/cave_data/1623-160.html
index f55a33748..b1789fa72 100644
--- a/cave_data/1623-160.html
+++ b/cave_data/1623-160.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-160</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-160</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 160</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/ +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-161.html b/cave_data/1623-161.html
index 9f4bfc68e..324c02a57 100644
--- a/cave_data/1623-161.html
+++ b/cave_data/1623-161.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-161</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-161</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kaninchenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>5/S/E x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-162.html b/cave_data/1623-162.html
index d0909d6cb..22257f2d7 100644
--- a/cave_data/1623-162.html
+++ b/cave_data/1623-162.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-162</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-162</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa H&ouml;hle 162</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-163.html b/cave_data/1623-163.html
index cee082ff3..d7c2805f1 100644
--- a/cave_data/1623-163.html
+++ b/cave_data/1623-163.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-163</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-163</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa H&ouml;hle 163</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-164.html b/cave_data/1623-164.html
index 4c73002a5..a5ffb9e5b 100644
--- a/cave_data/1623-164.html
+++ b/cave_data/1623-164.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-164</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-164</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 164</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-165.html b/cave_data/1623-165.html
index 888575735..81a3e8783 100644
--- a/cave_data/1623-165.html
+++ b/cave_data/1623-165.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-165</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-165</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 165</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-17.html b/cave_data/1623-17.html
index 11928dbb9..7354b9891 100644
--- a/cave_data/1623-17.html
+++ b/cave_data/1623-17.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-17</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-17</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>B&auml;renh&ouml;hle im H&ouml;llgraben</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-170.html b/cave_data/1623-170.html
index d86f777b4..0413eb6e1 100644
--- a/cave_data/1623-170.html
+++ b/cave_data/1623-170.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-170</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-170</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>LUSS/LA25</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-172.html b/cave_data/1623-172.html
index 488c50bf0..60dd485e7 100644
--- a/cave_data/1623-172.html
+++ b/cave_data/1623-172.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-172</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-172</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau H&ouml;hle 90/2</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-173.html b/cave_data/1623-173.html
index 410fda095..64ac75cce 100644
--- a/cave_data/1623-173.html
+++ b/cave_data/1623-173.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-173</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-173</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 90/3</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-174.html b/cave_data/1623-174.html
index 76e12a37f..7fe7221b5 100644
--- a/cave_data/1623-174.html
+++ b/cave_data/1623-174.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-174</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-174</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 90/4</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-175.html b/cave_data/1623-175.html
index ce116f17a..097915277 100644
--- a/cave_data/1623-175.html
+++ b/cave_data/1623-175.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-175</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-175</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 90/5</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-176.html b/cave_data/1623-176.html
index 73ad4a195..6c9c20745 100644
--- a/cave_data/1623-176.html
+++ b/cave_data/1623-176.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-176</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-176</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 90/6</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-177.html b/cave_data/1623-177.html
index a59d658ff..496d37ccc 100644
--- a/cave_data/1623-177.html
+++ b/cave_data/1623-177.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-177</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-177</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tantalus Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-178.html b/cave_data/1623-178.html
index 9ada60925..233879e3a 100644
--- a/cave_data/1623-178.html
+++ b/cave_data/1623-178.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-178</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-178</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau H&ouml;hle 90/8</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-179.html b/cave_data/1623-179.html
index 7de843f01..d1a93baf1 100644
--- a/cave_data/1623-179.html
+++ b/cave_data/1623-179.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-179</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-179</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 90/9</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-18.html b/cave_data/1623-18.html
index 27ecfd244..ed069fd69 100644
--- a/cave_data/1623-18.html
+++ b/cave_data/1623-18.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-18</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-18</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gaisofen im Ammerei</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-180.html b/cave_data/1623-180.html
index aa8665b4c..5e0e0187d 100644
--- a/cave_data/1623-180.html
+++ b/cave_data/1623-180.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-180</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-180</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 90/10</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-181.html b/cave_data/1623-181.html
index a32649b44..46929c207 100644
--- a/cave_data/1623-181.html
+++ b/cave_data/1623-181.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-181</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-181</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 90/11</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-183.html b/cave_data/1623-183.html
index 5c18ad5c9..1c45ffc77 100644
--- a/cave_data/1623-183.html
+++ b/cave_data/1623-183.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-183</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-183</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Elchfalle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S x </kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-184.html b/cave_data/1623-184.html
index 731a41898..4f56ad2c7 100644
--- a/cave_data/1623-184.html
+++ b/cave_data/1623-184.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-184</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-184</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Shiruken</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-187.html b/cave_data/1623-187.html
index d2005c56d..df154ea03 100644
--- a/cave_data/1623-187.html
+++ b/cave_data/1623-187.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-187</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-187</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 187</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-189.html b/cave_data/1623-189.html
index d6eeac51d..facbd3610 100644
--- a/cave_data/1623-189.html
+++ b/cave_data/1623-189.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-189</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-189</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 189</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-19.html b/cave_data/1623-19.html
index 01e826855..c1342f5d6 100644
--- a/cave_data/1623-19.html
+++ b/cave_data/1623-19.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-19</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-19</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gamsofen im Scharlingkar</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-191.html b/cave_data/1623-191.html
index 29118a08d..1e7005406 100644
--- a/cave_data/1623-191.html
+++ b/cave_data/1623-191.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-191</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-191</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 191</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-192.html b/cave_data/1623-192.html
index 11e45641c..1416b1d14 100644
--- a/cave_data/1623-192.html
+++ b/cave_data/1623-192.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-192</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-192</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 192</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-193.html b/cave_data/1623-193.html
index 17f2c1d90..322f983a3 100644
--- a/cave_data/1623-193.html
+++ b/cave_data/1623-193.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-193</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-193</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 193</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-194.html b/cave_data/1623-194.html
index 732189890..603c6d308 100644
--- a/cave_data/1623-194.html
+++ b/cave_data/1623-194.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-194</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-194</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 194</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-196.html b/cave_data/1623-196.html
index 07f864e1f..01b288365 100644
--- a/cave_data/1623-196.html
+++ b/cave_data/1623-196.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-196</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-196</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa H&ouml;hle 196</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-197.html b/cave_data/1623-197.html
index 27c8376cb..69784db10 100644
--- a/cave_data/1623-197.html
+++ b/cave_data/1623-197.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-197</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-197</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Bemoost Tropfen H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1989-01.html b/cave_data/1623-1989-01.html
index a808e5c89..45de0d5b3 100644
--- a/cave_data/1623-1989-01.html
+++ b/cave_data/1623-1989-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1989-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1989-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Maybe195</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-199.html b/cave_data/1623-199.html
index 45275610c..3c233ac62 100644
--- a/cave_data/1623-199.html
+++ b/cave_data/1623-199.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-199</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-199</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>St&uuml;rzender Felsbrocken H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1990-15.html b/cave_data/1623-1990-15.html
index 9309e2bc0..d8e98bd49 100644
--- a/cave_data/1623-1990-15.html
+++ b/cave_data/1623-1990-15.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1990-15</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1990-15</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>MaybeNonExistant</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1992-X01.html b/cave_data/1623-1992-X01.html
index b8f63245b..18d06b3c2 100644
--- a/cave_data/1623-1992-X01.html
+++ b/cave_data/1623-1992-X01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1992-X01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1992-X01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1996-01.html b/cave_data/1623-1996-01.html
index b89b7f0a9..04870d365 100644
--- a/cave_data/1623-1996-01.html
+++ b/cave_data/1623-1996-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1996-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1996-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ski-pole h&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1996-05.html b/cave_data/1623-1996-05.html
index 302d6cf27..b7b557e19 100644
--- a/cave_data/1623-1996-05.html
+++ b/cave_data/1623-1996-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1996-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1996-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1996WK12.html b/cave_data/1623-1996WK12.html
index d4913ce39..d66bd50a8 100644
--- a/cave_data/1623-1996WK12.html
+++ b/cave_data/1623-1996WK12.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1996WK12</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1996WK12</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1996WK4.html b/cave_data/1623-1996WK4.html
index 0ba482095..587c3ceb2 100644
--- a/cave_data/1623-1996WK4.html
+++ b/cave_data/1623-1996WK4.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1996WK4</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1996WK4</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1998-X01.html b/cave_data/1623-1998-X01.html
index b1f0402e0..1af3e3b53 100644
--- a/cave_data/1623-1998-X01.html
+++ b/cave_data/1623-1998-X01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1998-X01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1998-X01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>unknown98</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>? +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1999-MS-01.html b/cave_data/1623-1999-MS-01.html
index 1ffc79de2..12b003d7d 100644
--- a/cave_data/1623-1999-MS-01.html
+++ b/cave_data/1623-1999-MS-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1999-MS-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1999-MS-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1999-MS-02.html b/cave_data/1623-1999-MS-02.html
index 6fcb09d3b..99c41ba7b 100644
--- a/cave_data/1623-1999-MS-02.html
+++ b/cave_data/1623-1999-MS-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1999-MS-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1999-MS-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1999-OB-01.html b/cave_data/1623-1999-OB-01.html
index b22bac3c5..f38ec2792 100644
--- a/cave_data/1623-1999-OB-01.html
+++ b/cave_data/1623-1999-OB-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1999-OB-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1999-OB-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1999-OB-02.html b/cave_data/1623-1999-OB-02.html
index 7e996aa12..d062b41af 100644
--- a/cave_data/1623-1999-OB-02.html
+++ b/cave_data/1623-1999-OB-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1999-OB-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1999-OB-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-1999-X01.html b/cave_data/1623-1999-X01.html
index 704f8bed2..75ffa374a 100644
--- a/cave_data/1623-1999-X01.html
+++ b/cave_data/1623-1999-X01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-1999-X01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-1999-X01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2.html b/cave_data/1623-2.html
index e6dc2e104..d9c26c608 100644
--- a/cave_data/1623-2.html
+++ b/cave_data/1623-2.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Wasserl&ouml;cher</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/(W) =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-20.html b/cave_data/1623-20.html
index e963c398a..a89d231fb 100644
--- a/cave_data/1623-20.html
+++ b/cave_data/1623-20.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-20</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-20</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Windh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-200.html b/cave_data/1623-200.html
index f3b679e5b..3b64c8f6e 100644
--- a/cave_data/1623-200.html
+++ b/cave_data/1623-200.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-200</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-200</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Verlorener Rucksack Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2000-02.html b/cave_data/1623-2000-02.html
index a7afc3562..15ec29cb0 100644
--- a/cave_data/1623-2000-02.html
+++ b/cave_data/1623-2000-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2000-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2000-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/? +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2000-08.html b/cave_data/1623-2000-08.html
index 2f19b4a4a..82489a713 100644
--- a/cave_data/1623-2000-08.html
+++ b/cave_data/1623-2000-08.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2000-08</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2000-08</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Grabenkriegh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2001-02.html b/cave_data/1623-2001-02.html
index d2019af0d..64636c3a8 100644
--- a/cave_data/1623-2001-02.html
+++ b/cave_data/1623-2001-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2001-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2001-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2001-03.html b/cave_data/1623-2001-03.html
index 32fee008e..df77c69b7 100644
--- a/cave_data/1623-2001-03.html
+++ b/cave_data/1623-2001-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2001-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2001-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T=</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2001-09.html b/cave_data/1623-2001-09.html
index 7f676b76e..3c3c8ceb0 100644
--- a/cave_data/1623-2001-09.html
+++ b/cave_data/1623-2001-09.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2001-09</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2001-09</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Funkberaterschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2001-10.html b/cave_data/1623-2001-10.html
index 6a8cbd49c..efb34124c 100644
--- a/cave_data/1623-2001-10.html
+++ b/cave_data/1623-2001-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2001-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2001-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gro&szlig;arbeith&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2001-11.html b/cave_data/1623-2001-11.html
index 1144a8aa4..9e709aee1 100644
--- a/cave_data/1623-2001-11.html
+++ b/cave_data/1623-2001-11.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2001-11</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2001-11</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schn&uuml;rsenkelschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2001-12.html b/cave_data/1623-2001-12.html
index 4e736b295..2e4d5f7a5 100644
--- a/cave_data/1623-2001-12.html
+++ b/cave_data/1623-2001-12.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2001-12</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2001-12</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Unnotiggewohnlichkeitschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>=</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-03.html b/cave_data/1623-2002-03.html
index f1947301d..c049254ae 100644
--- a/cave_data/1623-2002-03.html
+++ b/cave_data/1623-2002-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Igelh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-06.html b/cave_data/1623-2002-06.html
index 590510e1f..4ee5c3e95 100644
--- a/cave_data/1623-2002-06.html
+++ b/cave_data/1623-2002-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Eiercremeh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-07.html b/cave_data/1623-2002-07.html
index ec7594016..c4982fc3d 100644
--- a/cave_data/1623-2002-07.html
+++ b/cave_data/1623-2002-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Quarries</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-10.html b/cave_data/1623-2002-10.html
index 61168342e..ebb5988f6 100644
--- a/cave_data/1623-2002-10.html
+++ b/cave_data/1623-2002-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-14.html b/cave_data/1623-2002-14.html
index c70762be8..96cc4c921 100644
--- a/cave_data/1623-2002-14.html
+++ b/cave_data/1623-2002-14.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-14</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-14</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Dead Tree Hole</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-AD-01.html b/cave_data/1623-2002-AD-01.html
index 865d27a91..1ebcdc798 100644
--- a/cave_data/1623-2002-AD-01.html
+++ b/cave_data/1623-2002-AD-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-AD-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-AD-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-AD-02.html b/cave_data/1623-2002-AD-02.html
index cdf1c24e8..268b2504f 100644
--- a/cave_data/1623-2002-AD-02.html
+++ b/cave_data/1623-2002-AD-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-AD-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-AD-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-AD-03.html b/cave_data/1623-2002-AD-03.html
index d990f3a9d..449e864e8 100644
--- a/cave_data/1623-2002-AD-03.html
+++ b/cave_data/1623-2002-AD-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-AD-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-AD-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-AD-04.html b/cave_data/1623-2002-AD-04.html
index f15a524a5..62b703cf2 100644
--- a/cave_data/1623-2002-AD-04.html
+++ b/cave_data/1623-2002-AD-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-AD-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-AD-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Klippenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-BUC-01.html b/cave_data/1623-2002-BUC-01.html
index 548a1c696..828a3eb5d 100644
--- a/cave_data/1623-2002-BUC-01.html
+++ b/cave_data/1623-2002-BUC-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-BUC-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-BUC-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-W-02.html b/cave_data/1623-2002-W-02.html
index 0cf4ecf27..c4cda71df 100644
--- a/cave_data/1623-2002-W-02.html
+++ b/cave_data/1623-2002-W-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-W-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-W-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-X09.html b/cave_data/1623-2002-X09.html
index 56b6a90de..1e485b606 100644
--- a/cave_data/1623-2002-X09.html
+++ b/cave_data/1623-2002-X09.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-X09</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-X09</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-X09B.html b/cave_data/1623-2002-X09B.html
index 600bb00b0..3ad8815a7 100644
--- a/cave_data/1623-2002-X09B.html
+++ b/cave_data/1623-2002-X09B.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-X09B</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-X09B</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-X15.html b/cave_data/1623-2002-X15.html
index ba390b741..7a355ac4f 100644
--- a/cave_data/1623-2002-X15.html
+++ b/cave_data/1623-2002-X15.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-X15</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-X15</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-X16.html b/cave_data/1623-2002-X16.html
index 304ca59a6..17544f8ed 100644
--- a/cave_data/1623-2002-X16.html
+++ b/cave_data/1623-2002-X16.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-X16</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-X16</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-X17.html b/cave_data/1623-2002-X17.html
index 1c186812a..5d8679be4 100644
--- a/cave_data/1623-2002-X17.html
+++ b/cave_data/1623-2002-X17.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-X17</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-X17</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-X18.html b/cave_data/1623-2002-X18.html
index b6a0815c3..eeda4acfe 100644
--- a/cave_data/1623-2002-X18.html
+++ b/cave_data/1623-2002-X18.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-X18</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-X18</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2002-XX.html b/cave_data/1623-2002-XX.html
index 2a681a1f4..20a7fe84a 100644
--- a/cave_data/1623-2002-XX.html
+++ b/cave_data/1623-2002-XX.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2002-XX</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2002-XX</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2003-X11.html b/cave_data/1623-2003-X11.html
index 7f297fdcd..11aec22e1 100644
--- a/cave_data/1623-2003-X11.html
+++ b/cave_data/1623-2003-X11.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2003-X11</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2003-X11</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2003-X12.html b/cave_data/1623-2003-X12.html
index cbcba60bb..aec6ed961 100644
--- a/cave_data/1623-2003-X12.html
+++ b/cave_data/1623-2003-X12.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2003-X12</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2003-X12</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2003-X13.html b/cave_data/1623-2003-X13.html
index 415fccb40..cb8588afe 100644
--- a/cave_data/1623-2003-X13.html
+++ b/cave_data/1623-2003-X13.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2003-X13</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2003-X13</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2003-X16.html b/cave_data/1623-2003-X16.html
index 13834827c..43005bc4c 100644
--- a/cave_data/1623-2003-X16.html
+++ b/cave_data/1623-2003-X16.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2003-X16</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2003-X16</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2003-X17.html b/cave_data/1623-2003-X17.html
index d2dc61583..08426605f 100644
--- a/cave_data/1623-2003-X17.html
+++ b/cave_data/1623-2003-X17.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2003-X17</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2003-X17</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2003-X18.html b/cave_data/1623-2003-X18.html
index d4cdbb14d..efe30fc42 100644
--- a/cave_data/1623-2003-X18.html
+++ b/cave_data/1623-2003-X18.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2003-X18</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2003-X18</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-02.html b/cave_data/1623-2004-02.html
index 191f1b297..39e75a32b 100644
--- a/cave_data/1623-2004-02.html
+++ b/cave_data/1623-2004-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>=</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-04.html b/cave_data/1623-2004-04.html
index 927e64bd5..c4b3ed484 100644
--- a/cave_data/1623-2004-04.html
+++ b/cave_data/1623-2004-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-05.html b/cave_data/1623-2004-05.html
index 6374d7c67..b3ddc184d 100644
--- a/cave_data/1623-2004-05.html
+++ b/cave_data/1623-2004-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-06.html b/cave_data/1623-2004-06.html
index f2851abfb..b9a470780 100644
--- a/cave_data/1623-2004-06.html
+++ b/cave_data/1623-2004-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-07.html b/cave_data/1623-2004-07.html
index 9e1356d81..2d48617ac 100644
--- a/cave_data/1623-2004-07.html
+++ b/cave_data/1623-2004-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-08.html b/cave_data/1623-2004-08.html
index d9009035b..819e71bea 100644
--- a/cave_data/1623-2004-08.html
+++ b/cave_data/1623-2004-08.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-08</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-08</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-09.html b/cave_data/1623-2004-09.html
index aba366a05..882bc0a8b 100644
--- a/cave_data/1623-2004-09.html
+++ b/cave_data/1623-2004-09.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-09</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-09</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-10.html b/cave_data/1623-2004-10.html
index 50cffb5c1..35964677f 100644
--- a/cave_data/1623-2004-10.html
+++ b/cave_data/1623-2004-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-0</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-13.html b/cave_data/1623-2004-13.html
index c11c3fdc8..470f1b8ec 100644
--- a/cave_data/1623-2004-13.html
+++ b/cave_data/1623-2004-13.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-13</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-13</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-14.html b/cave_data/1623-2004-14.html
index bcffd6069..611683fd2 100644
--- a/cave_data/1623-2004-14.html
+++ b/cave_data/1623-2004-14.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-14</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-14</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Doktorarbeitloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-16.html b/cave_data/1623-2004-16.html
index eaed6d7a4..1d2ee72ae 100644
--- a/cave_data/1623-2004-16.html
+++ b/cave_data/1623-2004-16.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-16</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-16</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-17.html b/cave_data/1623-2004-17.html
index 6a88e06e7..f5f2fbc92 100644
--- a/cave_data/1623-2004-17.html
+++ b/cave_data/1623-2004-17.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-17</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-17</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-18.html b/cave_data/1623-2004-18.html
index dd149577b..5db314a70 100644
--- a/cave_data/1623-2004-18.html
+++ b/cave_data/1623-2004-18.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-18</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-18</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Eiskeller</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2004-21.html b/cave_data/1623-2004-21.html
index 81126fd8a..3a72c136e 100644
--- a/cave_data/1623-2004-21.html
+++ b/cave_data/1623-2004-21.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2004-21</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2004-21</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/E =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2005-01.html b/cave_data/1623-2005-01.html
index 49b6fad8c..2ac2a33a7 100644
--- a/cave_data/1623-2005-01.html
+++ b/cave_data/1623-2005-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2005-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2005-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S + (?)</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2005-02.html b/cave_data/1623-2005-02.html
index cfb2adcf7..c297710a9 100644
--- a/cave_data/1623-2005-02.html
+++ b/cave_data/1623-2005-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2005-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2005-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>?</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2005-03.html b/cave_data/1623-2005-03.html
index d241922c5..79e492094 100644
--- a/cave_data/1623-2005-03.html
+++ b/cave_data/1623-2005-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2005-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2005-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>?</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2005-95.html b/cave_data/1623-2005-95.html
index 8d026c62e..74beaa8cf 100644
--- a/cave_data/1623-2005-95.html
+++ b/cave_data/1623-2005-95.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2005-95</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2005-95</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2005-97.html b/cave_data/1623-2005-97.html
index a7c9142fa..b42d2100a 100644
--- a/cave_data/1623-2005-97.html
+++ b/cave_data/1623-2005-97.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2005-97</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2005-97</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Genutetschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2005-98.html b/cave_data/1623-2005-98.html
index 07b662274..02c291e41 100644
--- a/cave_data/1623-2005-98.html
+++ b/cave_data/1623-2005-98.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2005-98</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2005-98</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>(Hanger Pot)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2005-99.html b/cave_data/1623-2005-99.html
index 2bfebc87c..a0ffd04e3 100644
--- a/cave_data/1623-2005-99.html
+++ b/cave_data/1623-2005-99.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2005-99</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2005-99</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ohne Mantel H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2006-04.html b/cave_data/1623-2006-04.html
index 69f42b789..2f50c4fc4 100644
--- a/cave_data/1623-2006-04.html
+++ b/cave_data/1623-2006-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2006-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2006-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2006-05.html b/cave_data/1623-2006-05.html
index acc0ed61a..849e15c13 100644
--- a/cave_data/1623-2006-05.html
+++ b/cave_data/1623-2006-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2006-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2006-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2006-07.html b/cave_data/1623-2006-07.html
index 52b6b496a..eca0a1491 100644
--- a/cave_data/1623-2006-07.html
+++ b/cave_data/1623-2006-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2006-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2006-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Infrared Spectrometer</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2006-71.html b/cave_data/1623-2006-71.html
index 8de9a49a7..dbc914176 100644
--- a/cave_data/1623-2006-71.html
+++ b/cave_data/1623-2006-71.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2006-71</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2006-71</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2006-72.html b/cave_data/1623-2006-72.html
index 1106a9d01..cfc400771 100644
--- a/cave_data/1623-2006-72.html
+++ b/cave_data/1623-2006-72.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2006-72</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2006-72</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Mystery Plus Cave</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2006-73.html b/cave_data/1623-2006-73.html
index a427cba81..add6cdd80 100644
--- a/cave_data/1623-2006-73.html
+++ b/cave_data/1623-2006-73.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2006-73</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2006-73</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ice Curtain Cave</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-01.html b/cave_data/1623-2007-01.html
index bfb2da3b2..dc324fcf8 100644
--- a/cave_data/1623-2007-01.html
+++ b/cave_data/1623-2007-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-02.html b/cave_data/1623-2007-02.html
index dda65028c..838b5e59a 100644
--- a/cave_data/1623-2007-02.html
+++ b/cave_data/1623-2007-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-04.html b/cave_data/1623-2007-04.html
index 959b3fbcc..022f6494a 100644
--- a/cave_data/1623-2007-04.html
+++ b/cave_data/1623-2007-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Slippery Hole</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-05.html b/cave_data/1623-2007-05.html
index 50306aaa6..0710fce9e 100644
--- a/cave_data/1623-2007-05.html
+++ b/cave_data/1623-2007-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-06.html b/cave_data/1623-2007-06.html
index 152c3b0e1..8b06982be 100644
--- a/cave_data/1623-2007-06.html
+++ b/cave_data/1623-2007-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-07.html b/cave_data/1623-2007-07.html
index 6b21d340c..ce8c49041 100644
--- a/cave_data/1623-2007-07.html
+++ b/cave_data/1623-2007-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-11.html b/cave_data/1623-2007-11.html
index c5225322b..fd19c62e1 100644
--- a/cave_data/1623-2007-11.html
+++ b/cave_data/1623-2007-11.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-11</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-11</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-12.html b/cave_data/1623-2007-12.html
index f81386c13..228fdb011 100644
--- a/cave_data/1623-2007-12.html
+++ b/cave_data/1623-2007-12.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-12</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-12</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Rosa Waffelkeks H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-70.html b/cave_data/1623-2007-70.html
index b3ad5c08d..e6225613b 100644
--- a/cave_data/1623-2007-70.html
+++ b/cave_data/1623-2007-70.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-70</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-70</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Spit Pot</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-72.html b/cave_data/1623-2007-72.html
index d5d46712a..d097dcdc7 100644
--- a/cave_data/1623-2007-72.html
+++ b/cave_data/1623-2007-72.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-72</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-72</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Batter Pot</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2007-neu.html b/cave_data/1623-2007-neu.html
index 5e9c50a3f..596fe96d9 100644
--- a/cave_data/1623-2007-neu.html
+++ b/cave_data/1623-2007-neu.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2007-neu</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2007-neu</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Nachbarschacht vom Grießkogel</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2009-01.html b/cave_data/1623-2009-01.html
index a3888f810..3883a3bec 100644
--- a/cave_data/1623-2009-01.html
+++ b/cave_data/1623-2009-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2009-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2009-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Affenjagdhoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2009-02.html b/cave_data/1623-2009-02.html
index e8fbebc93..b2636a3f9 100644
--- a/cave_data/1623-2009-02.html
+++ b/cave_data/1623-2009-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2009-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2009-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schneeh&uuml;hnh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2009-03.html b/cave_data/1623-2009-03.html
index 50d9b9076..4504bfc0f 100644
--- a/cave_data/1623-2009-03.html
+++ b/cave_data/1623-2009-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2009-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2009-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-201.html b/cave_data/1623-201.html
index f1f4358b7..0b06bff9c 100644
--- a/cave_data/1623-201.html
+++ b/cave_data/1623-201.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-201</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-201</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Haftefelle Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2010-02.html b/cave_data/1623-2010-02.html
index ff170b0a1..42894cac6 100644
--- a/cave_data/1623-2010-02.html
+++ b/cave_data/1623-2010-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2010-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2010-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>zigzag cave</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2010-04.html b/cave_data/1623-2010-04.html
index da2eb378f..4d87e13af 100644
--- a/cave_data/1623-2010-04.html
+++ b/cave_data/1623-2010-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2010-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2010-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2010-06.html b/cave_data/1623-2010-06.html
index 114b66def..2141d2066 100644
--- a/cave_data/1623-2010-06.html
+++ b/cave_data/1623-2010-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2010-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2010-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2010-07.html b/cave_data/1623-2010-07.html
index 7b2b1b786..a5c53f372 100644
--- a/cave_data/1623-2010-07.html
+++ b/cave_data/1623-2010-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2010-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2010-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Brunnen G schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-HW-01.html b/cave_data/1623-2012-HW-01.html
index 105f9821a..24ad95491 100644
--- a/cave_data/1623-2012-HW-01.html
+++ b/cave_data/1623-2012-HW-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-HW-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-HW-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1T-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-HW-02.html b/cave_data/1623-2012-HW-02.html
index 55e624418..ba2b2c501 100644
--- a/cave_data/1623-2012-HW-02.html
+++ b/cave_data/1623-2012-HW-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-HW-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-HW-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1T-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-OK-01.html b/cave_data/1623-2012-OK-01.html
index 099d9a71a..5358d2cac 100644
--- a/cave_data/1623-2012-OK-01.html
+++ b/cave_data/1623-2012-OK-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-OK-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-OK-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-OK-02.html b/cave_data/1623-2012-OK-02.html
index a4968bd3d..131719989 100644
--- a/cave_data/1623-2012-OK-02.html
+++ b/cave_data/1623-2012-OK-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-OK-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-OK-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-OW-01.html b/cave_data/1623-2012-OW-01.html
index 5b21faaaa..cecd60ad4 100644
--- a/cave_data/1623-2012-OW-01.html
+++ b/cave_data/1623-2012-OW-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-OW-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-OW-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Birth Control Chamber</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-OW-7.html b/cave_data/1623-2012-OW-7.html
index 588a2d9b9..cd85e15b5 100644
--- a/cave_data/1623-2012-OW-7.html
+++ b/cave_data/1623-2012-OW-7.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-OW-7</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-OW-7</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-dd-01.html b/cave_data/1623-2012-dd-01.html
index 6038b588c..b94be41b9 100644
--- a/cave_data/1623-2012-dd-01.html
+++ b/cave_data/1623-2012-dd-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-dd-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-dd-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1T/-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-dd-02.html b/cave_data/1623-2012-dd-02.html
index 352ade670..17185983e 100644
--- a/cave_data/1623-2012-dd-02.html
+++ b/cave_data/1623-2012-dd-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-dd-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-dd-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-dd-03.html b/cave_data/1623-2012-dd-03.html
index bac58d997..0f609b693 100644
--- a/cave_data/1623-2012-dd-03.html
+++ b/cave_data/1623-2012-dd-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-dd-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-dd-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-dd-04.html b/cave_data/1623-2012-dd-04.html
index 72e3f1f7a..9334c8b26 100644
--- a/cave_data/1623-2012-dd-04.html
+++ b/cave_data/1623-2012-dd-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-dd-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-dd-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-dd-06.html b/cave_data/1623-2012-dd-06.html
index 1eef265f2..b4649a84b 100644
--- a/cave_data/1623-2012-dd-06.html
+++ b/cave_data/1623-2012-dd-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-dd-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-dd-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Big D H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-dd-07.html b/cave_data/1623-2012-dd-07.html
index 9785d7b7d..20a2f9141 100644
--- a/cave_data/1623-2012-dd-07.html
+++ b/cave_data/1623-2012-dd-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-dd-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-dd-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-dd-09.html b/cave_data/1623-2012-dd-09.html
index 354970c9d..c40ec4900 100644
--- a/cave_data/1623-2012-dd-09.html
+++ b/cave_data/1623-2012-dd-09.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-dd-09</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-dd-09</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-dd-10.html b/cave_data/1623-2012-dd-10.html
index 20007d085..d1d070640 100644
--- a/cave_data/1623-2012-dd-10.html
+++ b/cave_data/1623-2012-dd-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-dd-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-dd-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-dd-11.html b/cave_data/1623-2012-dd-11.html
index 61956297c..e891dbfbb 100644
--- a/cave_data/1623-2012-dd-11.html
+++ b/cave_data/1623-2012-dd-11.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-dd-11</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-dd-11</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ft-01.html b/cave_data/1623-2012-ft-01.html
index 68014a5b4..a3c77172d 100644
--- a/cave_data/1623-2012-ft-01.html
+++ b/cave_data/1623-2012-ft-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ft-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ft-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ft-02.html b/cave_data/1623-2012-ft-02.html
index 173d503de..9e8a05d7b 100644
--- a/cave_data/1623-2012-ft-02.html
+++ b/cave_data/1623-2012-ft-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ft-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ft-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-js-01.html b/cave_data/1623-2012-js-01.html
index e61858711..465706d38 100644
--- a/cave_data/1623-2012-js-01.html
+++ b/cave_data/1623-2012-js-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-js-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-js-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Fruhlingsmiereschact</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-01.html b/cave_data/1623-2012-ns-01.html
index bd935171f..5e4096bc1 100644
--- a/cave_data/1623-2012-ns-01.html
+++ b/cave_data/1623-2012-ns-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-02.html b/cave_data/1623-2012-ns-02.html
index 6d18f9952..9bb6112e1 100644
--- a/cave_data/1623-2012-ns-02.html
+++ b/cave_data/1623-2012-ns-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-03.html b/cave_data/1623-2012-ns-03.html
index dec08022f..aa05ef025 100644
--- a/cave_data/1623-2012-ns-03.html
+++ b/cave_data/1623-2012-ns-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Slime Cave</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-05.html b/cave_data/1623-2012-ns-05.html
index 323c02851..39a18e7aa 100644
--- a/cave_data/1623-2012-ns-05.html
+++ b/cave_data/1623-2012-ns-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-06.html b/cave_data/1623-2012-ns-06.html
index 8d4df5573..58f42d46c 100644
--- a/cave_data/1623-2012-ns-06.html
+++ b/cave_data/1623-2012-ns-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-07.html b/cave_data/1623-2012-ns-07.html
index 8c332a866..bf1e97647 100644
--- a/cave_data/1623-2012-ns-07.html
+++ b/cave_data/1623-2012-ns-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-08.html b/cave_data/1623-2012-ns-08.html
index 664b6702d..be488583d 100644
--- a/cave_data/1623-2012-ns-08.html
+++ b/cave_data/1623-2012-ns-08.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-08</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-08</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-09.html b/cave_data/1623-2012-ns-09.html
index 763b1dc81..1a0130407 100644
--- a/cave_data/1623-2012-ns-09.html
+++ b/cave_data/1623-2012-ns-09.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-09</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-09</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Bergspitze Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-10.html b/cave_data/1623-2012-ns-10.html
index be3ffbbe2..bf351d542 100644
--- a/cave_data/1623-2012-ns-10.html
+++ b/cave_data/1623-2012-ns-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kleine Baum H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-12.html b/cave_data/1623-2012-ns-12.html
index b5d0ddd48..75dbc7816 100644
--- a/cave_data/1623-2012-ns-12.html
+++ b/cave_data/1623-2012-ns-12.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-12</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-12</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-14.html b/cave_data/1623-2012-ns-14.html
index a1aec1b4c..61b66a1bb 100644
--- a/cave_data/1623-2012-ns-14.html
+++ b/cave_data/1623-2012-ns-14.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-14</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-14</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-ns-15.html b/cave_data/1623-2012-ns-15.html
index bd4bbf8be..6458ca119 100644
--- a/cave_data/1623-2012-ns-15.html
+++ b/cave_data/1623-2012-ns-15.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-ns-15</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-ns-15</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-sw-01.html b/cave_data/1623-2012-sw-01.html
index e8fb28518..fafdd9541 100644
--- a/cave_data/1623-2012-sw-01.html
+++ b/cave_data/1623-2012-sw-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-sw-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-sw-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-sw-02.html b/cave_data/1623-2012-sw-02.html
index 64d7e1673..2607f8e91 100644
--- a/cave_data/1623-2012-sw-02.html
+++ b/cave_data/1623-2012-sw-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-sw-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-sw-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2012-sw-03.html b/cave_data/1623-2012-sw-03.html
index ac111d404..63d932c2f 100644
--- a/cave_data/1623-2012-sw-03.html
+++ b/cave_data/1623-2012-sw-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2012-sw-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2012-sw-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2013-03.html b/cave_data/1623-2013-03.html
index ebad9abe7..ccbea403a 100644
--- a/cave_data/1623-2013-03.html
+++ b/cave_data/1623-2013-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2013-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2013-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>AntsInYourPants</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2013-06.html b/cave_data/1623-2013-06.html
index b18abc33d..4db50a7e9 100644
--- a/cave_data/1623-2013-06.html
+++ b/cave_data/1623-2013-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2013-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2013-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2013-BL-01.html b/cave_data/1623-2013-BL-01.html
index 85107d90f..5f672baf8 100644
--- a/cave_data/1623-2013-BL-01.html
+++ b/cave_data/1623-2013-BL-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2013-BL-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2013-BL-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Dwarf Death-wish hole</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2013-sw-01.html b/cave_data/1623-2013-sw-01.html
index 7e7ba21d1..0b73356e2 100644
--- a/cave_data/1623-2013-sw-01.html
+++ b/cave_data/1623-2013-sw-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2013-sw-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2013-sw-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2014-777.html b/cave_data/1623-2014-777.html
index 8f97c073c..a75b573e3 100644
--- a/cave_data/1623-2014-777.html
+++ b/cave_data/1623-2014-777.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2014-777</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2014-777</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2014-867.html b/cave_data/1623-2014-867.html
index afb965a4b..a969b416d 100644
--- a/cave_data/1623-2014-867.html
+++ b/cave_data/1623-2014-867.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2014-867</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2014-867</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2014-BL-01.html b/cave_data/1623-2014-BL-01.html
index fb854ec6f..d4b5c6b3f 100644
--- a/cave_data/1623-2014-BL-01.html
+++ b/cave_data/1623-2014-BL-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2014-BL-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2014-BL-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2014-BL888.html b/cave_data/1623-2014-BL888.html
index bee7b715f..520607704 100644
--- a/cave_data/1623-2014-BL888.html
+++ b/cave_data/1623-2014-BL888.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2014-BL888</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2014-BL888</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Silber Fisch Hoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2014-MF-01.html b/cave_data/1623-2014-MF-01.html
index 810c5fdf9..7fb47f99f 100644
--- a/cave_data/1623-2014-MF-01.html
+++ b/cave_data/1623-2014-MF-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2014-MF-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2014-MF-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2014-MF-02.html b/cave_data/1623-2014-MF-02.html
index 3b4433d86..62ab2147b 100644
--- a/cave_data/1623-2014-MF-02.html
+++ b/cave_data/1623-2014-MF-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2014-MF-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2014-MF-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2014-MF-03.html b/cave_data/1623-2014-MF-03.html
index 227865cf2..10de64d01 100644
--- a/cave_data/1623-2014-MF-03.html
+++ b/cave_data/1623-2014-MF-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2014-MF-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2014-MF-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2014-NP-01.html b/cave_data/1623-2014-NP-01.html
index 8b47b7920..3393125bd 100644
--- a/cave_data/1623-2014-NP-01.html
+++ b/cave_data/1623-2014-NP-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2014-NP-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2014-NP-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2015-DL-01.html b/cave_data/1623-2015-DL-01.html
index cb95e54cc..09b56e057 100644
--- a/cave_data/1623-2015-DL-01.html
+++ b/cave_data/1623-2015-DL-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2015-DL-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2015-DL-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Shagged Spit H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2015-DL-02.html b/cave_data/1623-2015-DL-02.html
index aa0a210d6..0016b9117 100644
--- a/cave_data/1623-2015-DL-02.html
+++ b/cave_data/1623-2015-DL-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2015-DL-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2015-DL-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Chossy Death Slope H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2017-21.html b/cave_data/1623-2017-21.html
index 70c4c1015..35af688b5 100755
--- a/cave_data/1623-2017-21.html
+++ b/cave_data/1623-2017-21.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2017-21</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2017-21</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2017-22.html b/cave_data/1623-2017-22.html
index 59e23fa2f..b00cd76af 100755
--- a/cave_data/1623-2017-22.html
+++ b/cave_data/1623-2017-22.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2017-22</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2017-22</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2017-AA-01.html b/cave_data/1623-2017-AA-01.html
index 6c5bdfe09..86dd99e72 100644
--- a/cave_data/1623-2017-AA-01.html
+++ b/cave_data/1623-2017-AA-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2017-AA-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2017-AA-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2017-AMS-01.html b/cave_data/1623-2017-AMS-01.html
index 0e06c5822..945eb3504 100644
--- a/cave_data/1623-2017-AMS-01.html
+++ b/cave_data/1623-2017-AMS-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2017-AMS-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2017-AMS-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Delicate Bridge Cave</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2017-AMS-02.html b/cave_data/1623-2017-AMS-02.html
index 524df84b1..c0b322580 100644
--- a/cave_data/1623-2017-AMS-02.html
+++ b/cave_data/1623-2017-AMS-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2017-AMS-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2017-AMS-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Elusive pit</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2017-NR-01.html b/cave_data/1623-2017-NR-01.html
index 690939af8..b3fd91131 100644
--- a/cave_data/1623-2017-NR-01.html
+++ b/cave_data/1623-2017-NR-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2017-NR-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2017-NR-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2017-NR-02.html b/cave_data/1623-2017-NR-02.html
index bdc1be073..7bf83e90c 100644
--- a/cave_data/1623-2017-NR-02.html
+++ b/cave_data/1623-2017-NR-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2017-NR-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2017-NR-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2018-MS-01.html b/cave_data/1623-2018-MS-01.html
index 75798a15c..348f70c9b 100644
--- a/cave_data/1623-2018-MS-01.html
+++ b/cave_data/1623-2018-MS-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2018-MS-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2018-MS-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2018-NTU-01.html b/cave_data/1623-2018-NTU-01.html
index 9355b8aad..7ec9ab229 100644
--- a/cave_data/1623-2018-NTU-01.html
+++ b/cave_data/1623-2018-NTU-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2018-NTU-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2018-NTU-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2018-NTU-02.html b/cave_data/1623-2018-NTU-02.html
index d6e954f82..3bdb0f293 100644
--- a/cave_data/1623-2018-NTU-02.html
+++ b/cave_data/1623-2018-NTU-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2018-NTU-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2018-NTU-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2018-aa-01.html b/cave_data/1623-2018-aa-01.html
index 5944d9c5d..b35721067 100644
--- a/cave_data/1623-2018-aa-01.html
+++ b/cave_data/1623-2018-aa-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2018-aa-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2018-aa-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Achte auf die Lücke</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2018-ad-01.html b/cave_data/1623-2018-ad-01.html
index 47264a2f7..a234a07d7 100644
--- a/cave_data/1623-2018-ad-01.html
+++ b/cave_data/1623-2018-ad-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2018-ad-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2018-ad-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2018-pf-01.html b/cave_data/1623-2018-pf-01.html
index f5f4dc955..179561c5a 100644
--- a/cave_data/1623-2018-pf-01.html
+++ b/cave_data/1623-2018-pf-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2018-pf-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2018-pf-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2018-pf-02.html b/cave_data/1623-2018-pf-02.html
index 1f8bca1b9..2daaf690f 100644
--- a/cave_data/1623-2018-pf-02.html
+++ b/cave_data/1623-2018-pf-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2018-pf-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2018-pf-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2018-pf-03.html b/cave_data/1623-2018-pf-03.html
index 98062bf59..ea371fc5c 100644
--- a/cave_data/1623-2018-pf-03.html
+++ b/cave_data/1623-2018-pf-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2018-pf-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2018-pf-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-202.html b/cave_data/1623-202.html
index 994e60256..f3e0a730c 100644
--- a/cave_data/1623-202.html
+++ b/cave_data/1623-202.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-202</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-202</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Dominoschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-01.html b/cave_data/1623-2022-HH-01.html
index 61871fb9c..cc20c5b1c 100644
--- a/cave_data/1623-2022-HH-01.html
+++ b/cave_data/1623-2022-HH-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-02.html b/cave_data/1623-2022-HH-02.html
index 383e54f17..005de68fe 100644
--- a/cave_data/1623-2022-HH-02.html
+++ b/cave_data/1623-2022-HH-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-03.html b/cave_data/1623-2022-HH-03.html
index 3dfc8651a..422f3e1f4 100644
--- a/cave_data/1623-2022-HH-03.html
+++ b/cave_data/1623-2022-HH-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-04.html b/cave_data/1623-2022-HH-04.html
index 98b1b8bf2..e1039ec24 100644
--- a/cave_data/1623-2022-HH-04.html
+++ b/cave_data/1623-2022-HH-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-05.html b/cave_data/1623-2022-HH-05.html
index 938ae72ca..557218d17 100644
--- a/cave_data/1623-2022-HH-05.html
+++ b/cave_data/1623-2022-HH-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-06.html b/cave_data/1623-2022-HH-06.html
index 4fbc522ba..9364c70f2 100644
--- a/cave_data/1623-2022-HH-06.html
+++ b/cave_data/1623-2022-HH-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-07.html b/cave_data/1623-2022-HH-07.html
index 6fc909b88..fdd876469 100644
--- a/cave_data/1623-2022-HH-07.html
+++ b/cave_data/1623-2022-HH-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-08.html b/cave_data/1623-2022-HH-08.html
index 91d06d5f9..9f4f7d921 100644
--- a/cave_data/1623-2022-HH-08.html
+++ b/cave_data/1623-2022-HH-08.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-08</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-08</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-09.html b/cave_data/1623-2022-HH-09.html
index 45aaeb2b3..73e40c757 100644
--- a/cave_data/1623-2022-HH-09.html
+++ b/cave_data/1623-2022-HH-09.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-09</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-09</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-10.html b/cave_data/1623-2022-HH-10.html
index bb8554c24..2d10513a8 100644
--- a/cave_data/1623-2022-HH-10.html
+++ b/cave_data/1623-2022-HH-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-11.html b/cave_data/1623-2022-HH-11.html
index cb3c9be78..c58298b0e 100644
--- a/cave_data/1623-2022-HH-11.html
+++ b/cave_data/1623-2022-HH-11.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-11</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-11</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-HH-12.html b/cave_data/1623-2022-HH-12.html
index f29b35ca2..d92ee386f 100644
--- a/cave_data/1623-2022-HH-12.html
+++ b/cave_data/1623-2022-HH-12.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-HH-12</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-HH-12</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2022-KB-01.html b/cave_data/1623-2022-KB-01.html
index c328d5b7d..b4d1ac22c 100644
--- a/cave_data/1623-2022-KB-01.html
+++ b/cave_data/1623-2022-KB-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2022-KB-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2022-KB-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-01.html b/cave_data/1623-2023-ASH-01.html
index a33e20a9f..fc9a29c0f 100644
--- a/cave_data/1623-2023-ASH-01.html
+++ b/cave_data/1623-2023-ASH-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-02.html b/cave_data/1623-2023-ASH-02.html
index 264d31b0b..33ec5e32a 100644
--- a/cave_data/1623-2023-ASH-02.html
+++ b/cave_data/1623-2023-ASH-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-03.html b/cave_data/1623-2023-ASH-03.html
index e0cd51c2e..179834b16 100644
--- a/cave_data/1623-2023-ASH-03.html
+++ b/cave_data/1623-2023-ASH-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-04.html b/cave_data/1623-2023-ASH-04.html
index b80ae4dd3..698821877 100644
--- a/cave_data/1623-2023-ASH-04.html
+++ b/cave_data/1623-2023-ASH-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-06.html b/cave_data/1623-2023-ASH-06.html
index f03250c82..6657fbae7 100644
--- a/cave_data/1623-2023-ASH-06.html
+++ b/cave_data/1623-2023-ASH-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-07.html b/cave_data/1623-2023-ASH-07.html
index 8c27b3573..3092ee7a0 100644
--- a/cave_data/1623-2023-ASH-07.html
+++ b/cave_data/1623-2023-ASH-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-10.html b/cave_data/1623-2023-ASH-10.html
index 8da256185..3d433190c 100644
--- a/cave_data/1623-2023-ASH-10.html
+++ b/cave_data/1623-2023-ASH-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-11.html b/cave_data/1623-2023-ASH-11.html
index f118f24d7..d1496f43c 100644
--- a/cave_data/1623-2023-ASH-11.html
+++ b/cave_data/1623-2023-ASH-11.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-11</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-11</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-12.html b/cave_data/1623-2023-ASH-12.html
index b63f825a5..406f3b800 100644
--- a/cave_data/1623-2023-ASH-12.html
+++ b/cave_data/1623-2023-ASH-12.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-12</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-12</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-13.html b/cave_data/1623-2023-ASH-13.html
index 833155ba3..b332faafd 100644
--- a/cave_data/1623-2023-ASH-13.html
+++ b/cave_data/1623-2023-ASH-13.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-13</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-13</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ASH-14.html b/cave_data/1623-2023-ASH-14.html
index 5a839e80e..038e43123 100644
--- a/cave_data/1623-2023-ASH-14.html
+++ b/cave_data/1623-2023-ASH-14.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-14</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-14</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-BL-10.html b/cave_data/1623-2023-BL-10.html
index fc72985c8..5dc994507 100644
--- a/cave_data/1623-2023-BL-10.html
+++ b/cave_data/1623-2023-BL-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-BL-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-BL-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-BL-11.html b/cave_data/1623-2023-BL-11.html
index 2f48eaed1..121a59532 100644
--- a/cave_data/1623-2023-BL-11.html
+++ b/cave_data/1623-2023-BL-11.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-BL-11</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-BL-11</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-EBH-01.html b/cave_data/1623-2023-EBH-01.html
index 3ef9735fe..c74e4f88c 100644
--- a/cave_data/1623-2023-EBH-01.html
+++ b/cave_data/1623-2023-EBH-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-EBH-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-EBH-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-EBH-02.html b/cave_data/1623-2023-EBH-02.html
index d048f503b..eaa47f8c8 100644
--- a/cave_data/1623-2023-EBH-02.html
+++ b/cave_data/1623-2023-EBH-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-EBH-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-EBH-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-JS-01.html b/cave_data/1623-2023-JS-01.html
index 55345c68a..d4cee9b31 100644
--- a/cave_data/1623-2023-JS-01.html
+++ b/cave_data/1623-2023-JS-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-JS-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-JS-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Sunglasses disapointment</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-JS-02.html b/cave_data/1623-2023-JS-02.html
index 68ae751a6..21fd33ad8 100644
--- a/cave_data/1623-2023-JS-02.html
+++ b/cave_data/1623-2023-JS-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-JS-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-JS-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-JS-03.html b/cave_data/1623-2023-JS-03.html
index 3a13903dc..843e80d5f 100644
--- a/cave_data/1623-2023-JS-03.html
+++ b/cave_data/1623-2023-JS-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-JS-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-JS-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gardeners'World</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-JW-02.html b/cave_data/1623-2023-JW-02.html
index 7fae66586..77d5246ba 100644
--- a/cave_data/1623-2023-JW-02.html
+++ b/cave_data/1623-2023-JW-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-JW-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-JW-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-JW-03.html b/cave_data/1623-2023-JW-03.html
index eaf7c0103..2f9103eb0 100644
--- a/cave_data/1623-2023-JW-03.html
+++ b/cave_data/1623-2023-JW-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-JW-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-JW-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-MG-03.html b/cave_data/1623-2023-MG-03.html
index 971975710..7733a4e76 100644
--- a/cave_data/1623-2023-MG-03.html
+++ b/cave_data/1623-2023-MG-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-MG-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-MG-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kalte Salamanderhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-MG-05.html b/cave_data/1623-2023-MG-05.html
index 6b4fa236f..1cf70c899 100644
--- a/cave_data/1623-2023-MG-05.html
+++ b/cave_data/1623-2023-MG-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-MG-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-MG-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-MG-06.html b/cave_data/1623-2023-MG-06.html
index 4f4e089a5..417eb3f1e 100644
--- a/cave_data/1623-2023-MG-06.html
+++ b/cave_data/1623-2023-MG-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-MG-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-MG-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-MM-01.html b/cave_data/1623-2023-MM-01.html
index 0d4c06691..da82ed7c9 100644
--- a/cave_data/1623-2023-MM-01.html
+++ b/cave_data/1623-2023-MM-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-MM-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-MM-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-MM-02.html b/cave_data/1623-2023-MM-02.html
index 5b8bf7724..ae3a53d87 100644
--- a/cave_data/1623-2023-MM-02.html
+++ b/cave_data/1623-2023-MM-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-MM-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-MM-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>CliffRichards</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-OK-01.html b/cave_data/1623-2023-OK-01.html
index d830955ce..08e5e38ba 100644
--- a/cave_data/1623-2023-OK-01.html
+++ b/cave_data/1623-2023-OK-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-OK-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-OK-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>The Bees Knees</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-ft-01.html b/cave_data/1623-2023-ft-01.html
index e7c79273b..58fc92699 100644
--- a/cave_data/1623-2023-ft-01.html
+++ b/cave_data/1623-2023-ft-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ft-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ft-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Sinnlose Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-2023-hbrw-05.html b/cave_data/1623-2023-hbrw-05.html
index 7332e100c..94a731a27 100644
--- a/cave_data/1623-2023-hbrw-05.html
+++ b/cave_data/1623-2023-hbrw-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-hbrw-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-hbrw-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Rose Blumen Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-203.html b/cave_data/1623-203.html
index a3367f356..2d7362e7a 100644
--- a/cave_data/1623-203.html
+++ b/cave_data/1623-203.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-203</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-203</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Sonnenscheinschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-204.html b/cave_data/1623-204.html
index 7b05adbe5..988b12a28 100644
--- a/cave_data/1623-204.html
+++ b/cave_data/1623-204.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-204</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-204</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Steinbr&uuml;ckenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><area>2d</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code>5/S x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-206.html b/cave_data/1623-206.html
index ed8caadd8..44bb77cfd 100644
--- a/cave_data/1623-206.html
+++ b/cave_data/1623-206.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-206</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-206</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Sieben-Eingangsh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-207.html b/cave_data/1623-207.html
index 5c5f204cd..fddbcb6de 100644
--- a/cave_data/1623-207.html
+++ b/cave_data/1623-207.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-207</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-207</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plumpskloh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-208.html b/cave_data/1623-208.html
index 6fdea97b8..ac1a1975b 100644
--- a/cave_data/1623-208.html
+++ b/cave_data/1623-208.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-208</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-208</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Quallenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-209.html b/cave_data/1623-209.html
index 8c3bd73b9..4071b96c7 100644
--- a/cave_data/1623-209.html
+++ b/cave_data/1623-209.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-209</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-209</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schistock-Absturzschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-21.html b/cave_data/1623-21.html
index 09bc08abe..da0c95719 100644
--- a/cave_data/1623-21.html
+++ b/cave_data/1623-21.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-21</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-21</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Windloch im Egglgrube</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-210.html b/cave_data/1623-210.html
index edfc40f83..f1956ee63 100644
--- a/cave_data/1623-210.html
+++ b/cave_data/1623-210.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-210</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-210</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Fettsack und Faulpelz h&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-215.html b/cave_data/1623-215.html
index 2d184dd6f..fe1f87ce7 100644
--- a/cave_data/1623-215.html
+++ b/cave_data/1623-215.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-215</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-215</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Rufverbindungsh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-216.html b/cave_data/1623-216.html
index fbec298f4..39bad064d 100644
--- a/cave_data/1623-216.html
+++ b/cave_data/1623-216.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-216</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-216</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Nichts 50</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-218.html b/cave_data/1623-218.html
index 355d2544e..aa9d45476 100644
--- a/cave_data/1623-218.html
+++ b/cave_data/1623-218.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-218</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-218</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Hammerkopfabsturtzh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-219.html b/cave_data/1623-219.html
index 3bf6ea910..3796020c8 100644
--- a/cave_data/1623-219.html
+++ b/cave_data/1623-219.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-219</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-219</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tertaeingfester</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-22.html b/cave_data/1623-22.html
index 7213c05b1..5890a43a9 100644
--- a/cave_data/1623-22.html
+++ b/cave_data/1623-22.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-22</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-22</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Spiralschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-220.html b/cave_data/1623-220.html
index ac8c27f61..908af1e49 100644
--- a/cave_data/1623-220.html
+++ b/cave_data/1623-220.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-220</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-220</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kennedy Alternative</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-222.html b/cave_data/1623-222.html
index 80500f867..a9c8eff3f 100644
--- a/cave_data/1623-222.html
+++ b/cave_data/1623-222.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-222</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-222</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>G&ouml;sserh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-223.html b/cave_data/1623-223.html
index 6ae92a7d9..0d08fb9ca 100644
--- a/cave_data/1623-223.html
+++ b/cave_data/1623-223.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-223</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-223</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Eggenbergschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-224.html b/cave_data/1623-224.html
index a734d9cd8..4d670d8e7 100644
--- a/cave_data/1623-224.html
+++ b/cave_data/1623-224.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-224</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-224</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Toplesscanyonh&ouml;hle </official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-228.html b/cave_data/1623-228.html
index fd9f7e4c6..dd3848779 100644
--- a/cave_data/1623-228.html
+++ b/cave_data/1623-228.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-228</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-228</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kleine Schnellzugh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-23.html b/cave_data/1623-23.html
index 73f58ff6b..69adf8aae 100644
--- a/cave_data/1623-23.html
+++ b/cave_data/1623-23.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-23</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-23</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Steinbockh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/t/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-230.html b/cave_data/1623-230.html
index 5ce425881..f25ec225f 100644
--- a/cave_data/1623-230.html
+++ b/cave_data/1623-230.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-230</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-230</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Verge&szlig;lichheith&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>+(?)</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-232.html b/cave_data/1623-232.html
index ce639820e..6912fef84 100644
--- a/cave_data/1623-232.html
+++ b/cave_data/1623-232.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-232</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-232</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Grie&szlig;kogelschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S x </kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-233.html b/cave_data/1623-233.html
index cadf0ce53..619e8a218 100644
--- a/cave_data/1623-233.html
+++ b/cave_data/1623-233.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-233</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-233</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Betthupferie</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-234.html b/cave_data/1623-234.html
index 7cb132445..2b5f91f8f 100644
--- a/cave_data/1623-234.html
+++ b/cave_data/1623-234.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-234</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-234</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Hauchh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>3/S/W x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-238.html b/cave_data/1623-238.html
index 01a2b468c..2a9799107 100644
--- a/cave_data/1623-238.html
+++ b/cave_data/1623-238.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-238</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-238</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Flinkameiseschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-239.html b/cave_data/1623-239.html
index 8786125e8..42ba30f8a 100644
--- a/cave_data/1623-239.html
+++ b/cave_data/1623-239.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-239</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-239</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Rock'n'Roll H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>3/S/T x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-24.html b/cave_data/1623-24.html
index 216cc678b..a149e7bd0 100644
--- a/cave_data/1623-24.html
+++ b/cave_data/1623-24.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-24</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-24</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schachth&ouml;hle bei Egglgrubenalm</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-240.html b/cave_data/1623-240.html
index 73b8a39e2..185e2df49 100644
--- a/cave_data/1623-240.html
+++ b/cave_data/1623-240.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-240</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-240</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gew&ouml;lbeschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-241.html b/cave_data/1623-241.html
index 6355bd549..0dcc1d210 100644
--- a/cave_data/1623-241.html
+++ b/cave_data/1623-241.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-241</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-241</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Dreieckh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-242.html b/cave_data/1623-242.html
index 945367cf2..cbe3586df 100644
--- a/cave_data/1623-242.html
+++ b/cave_data/1623-242.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-242</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-242</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tropfelh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S/W +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-243.html b/cave_data/1623-243.html
index 74b9e2397..a0fc020cb 100644
--- a/cave_data/1623-243.html
+++ b/cave_data/1623-243.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-243</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-243</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>GNDN H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/E x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-244.html b/cave_data/1623-244.html
index 161ec4ae9..69b2bf071 100644
--- a/cave_data/1623-244.html
+++ b/cave_data/1623-244.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-244</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-244</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>D&uuml;nne Faulpelz H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-245.html b/cave_data/1623-245.html
index c352685d0..ee662f0dc 100644
--- a/cave_data/1623-245.html
+++ b/cave_data/1623-245.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-245</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-245</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Weizeneish&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/E x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-246.html b/cave_data/1623-246.html
index f7b3faa04..a4ac403b1 100644
--- a/cave_data/1623-246.html
+++ b/cave_data/1623-246.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-246</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-246</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Damoclesschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-247.html b/cave_data/1623-247.html
index db80583a0..802d24489 100644
--- a/cave_data/1623-247.html
+++ b/cave_data/1623-247.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-247</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-247</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kartoffelbreih&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-25.html b/cave_data/1623-25.html
index b0ec21811..7c35d6b4c 100644
--- a/cave_data/1623-25.html
+++ b/cave_data/1623-25.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-25</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-25</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Mauskothh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-251.html b/cave_data/1623-251.html
index 219818ea4..f8cc47acc 100644
--- a/cave_data/1623-251.html
+++ b/cave_data/1623-251.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-251</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-251</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>In Ihrer Gesichtsh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-252.html b/cave_data/1623-252.html
index 7b5fda584..0963e8a3f 100644
--- a/cave_data/1623-252.html
+++ b/cave_data/1623-252.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-252</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-252</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Bunnyschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/T x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-253.html b/cave_data/1623-253.html
index d2ea04609..f9cdc5bb8 100644
--- a/cave_data/1623-253.html
+++ b/cave_data/1623-253.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-253</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-253</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Rundreiseh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-254.html b/cave_data/1623-254.html
index baf89b293..3862092d0 100644
--- a/cave_data/1623-254.html
+++ b/cave_data/1623-254.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-254</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-254</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kindergartenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/T x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-255.html b/cave_data/1623-255.html
index 1177ea671..6cc43c61d 100644
--- a/cave_data/1623-255.html
+++ b/cave_data/1623-255.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-255</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-255</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Brecheisenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-256.html b/cave_data/1623-256.html
index 233b89d96..bf3ceee9c 100644
--- a/cave_data/1623-256.html
+++ b/cave_data/1623-256.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-256</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-256</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Nischeh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-257.html b/cave_data/1623-257.html
index 88405d448..7c0015a8d 100644
--- a/cave_data/1623-257.html
+++ b/cave_data/1623-257.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-257</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-257</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Daumenkinoh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-258.html b/cave_data/1623-258.html
index 481f27d4b..db0e80423 100644
--- a/cave_data/1623-258.html
+++ b/cave_data/1623-258.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-258</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-258</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tunnockschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><area>2d</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-259.html b/cave_data/1623-259.html
index 0c3b936bf..02038bbbe 100644
--- a/cave_data/1623-259.html
+++ b/cave_data/1623-259.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-259</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-259</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gassischacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-26.html b/cave_data/1623-26.html
index 7b4a46413..88077016e 100644
--- a/cave_data/1623-26.html
+++ b/cave_data/1623-26.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-26</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-26</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Wasserschlinger I</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/(W) +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-260.html b/cave_data/1623-260.html
index 0e80ae7d0..a3442a7d2 100644
--- a/cave_data/1623-260.html
+++ b/cave_data/1623-260.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-260</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-260</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Rumpelkammer (e08)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-261.html b/cave_data/1623-261.html
index 13b6213c0..f2a0614a1 100644
--- a/cave_data/1623-261.html
+++ b/cave_data/1623-261.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-261</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-261</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hle f&uuml;r kleine Jungs (e10)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-262.html b/cave_data/1623-262.html
index f8e7024fe..3d08723c4 100644
--- a/cave_data/1623-262.html
+++ b/cave_data/1623-262.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-262</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-262</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Der Pseudobringer (e18)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-264.html b/cave_data/1623-264.html
index a93d8ada5..60db0edf9 100644
--- a/cave_data/1623-264.html
+++ b/cave_data/1623-264.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-264</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-264</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Balkonh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><area>2d</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-267.html b/cave_data/1623-267.html
index f0cc9d1cd..4ecaa40fc 100644
--- a/cave_data/1623-267.html
+++ b/cave_data/1623-267.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-267</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-267</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Verstecktentalh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-268.html b/cave_data/1623-268.html
index 98c1b611e..29fa2f0e8 100644
--- a/cave_data/1623-268.html
+++ b/cave_data/1623-268.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-268</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-268</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Neunzehn Yahr Wartezeit H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-269.html b/cave_data/1623-269.html
index 281a9114f..87779e642 100644
--- a/cave_data/1623-269.html
+++ b/cave_data/1623-269.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-269</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-269</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Maraehöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><area>1d</area><!-- the CUCC-defined areas shown in http://expo.survex.com/areas.htm -->
 <kataster_code>1/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-27.html b/cave_data/1623-27.html
index c224add8e..2e8aaf28e 100644
--- a/cave_data/1623-27.html
+++ b/cave_data/1623-27.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-27</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-27</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Wasserschlinger II</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/(W) +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-270.html b/cave_data/1623-270.html
index 363a74f23..7eb14330d 100644
--- a/cave_data/1623-270.html
+++ b/cave_data/1623-270.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-270</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-270</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tote Gemse Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-271.html b/cave_data/1623-271.html
index 38c3bb10e..25bde14cc 100644
--- a/cave_data/1623-271.html
+++ b/cave_data/1623-271.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-271</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-271</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Korokoroh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-272.html b/cave_data/1623-272.html
index 36fe93e65..b575b94b8 100644
--- a/cave_data/1623-272.html
+++ b/cave_data/1623-272.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-272</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-272</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Zweite Kugel Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>3S</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-273.html b/cave_data/1623-273.html
index d20724945..3ffea4d33 100644
--- a/cave_data/1623-273.html
+++ b/cave_data/1623-273.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-273</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-273</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ferkelh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-274.html b/cave_data/1623-274.html
index 03e3d9b0b..4d3146779 100644
--- a/cave_data/1623-274.html
+++ b/cave_data/1623-274.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-274</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-274</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Verlorener Bleistift H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-277.html b/cave_data/1623-277.html
index 23a13128f..f9909043a 100644
--- a/cave_data/1623-277.html
+++ b/cave_data/1623-277.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-277</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-277</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schlechte Wettervorhersage</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-28.html b/cave_data/1623-28.html
index 531e3ab88..7e013ca42 100644
--- a/cave_data/1623-28.html
+++ b/cave_data/1623-28.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-28</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-28</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Augsteckh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/t/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-281.html b/cave_data/1623-281.html
index 2022239bf..bf3712ead 100644
--- a/cave_data/1623-281.html
+++ b/cave_data/1623-281.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-281</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-281</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gr&uuml;nstein Eish&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-283.html b/cave_data/1623-283.html
index c7dbcfa68..29336e3cc 100644
--- a/cave_data/1623-283.html
+++ b/cave_data/1623-283.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-283</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-283</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Organh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-285.html b/cave_data/1623-285.html
index 8fd274d4c..0360cc7c0 100644
--- a/cave_data/1623-285.html
+++ b/cave_data/1623-285.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-285</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-285</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Geknackter Packsackhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-286.html b/cave_data/1623-286.html
index b219df372..c30e75edf 100644
--- a/cave_data/1623-286.html
+++ b/cave_data/1623-286.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-286</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-286</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Radschlaghöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-287.html b/cave_data/1623-287.html
index 106d8fce4..cfb03b220 100644
--- a/cave_data/1623-287.html
+++ b/cave_data/1623-287.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-287</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-287</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Nach Osten Gefahren H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-288.html b/cave_data/1623-288.html
index 6686fb8ee..09d033683 100644
--- a/cave_data/1623-288.html
+++ b/cave_data/1623-288.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-288</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-288</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Lila Lupinenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-289.html b/cave_data/1623-289.html
index 73e2cbfdc..3583f5284 100644
--- a/cave_data/1623-289.html
+++ b/cave_data/1623-289.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-289</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-289</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hle der guten Hoffnung</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-29.html b/cave_data/1623-29.html
index d2f3a6ff8..ec5634901 100644
--- a/cave_data/1623-29.html
+++ b/cave_data/1623-29.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-29</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-29</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwarzmoosloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-290.html b/cave_data/1623-290.html
index 490e096bb..c3244db07 100644
--- a/cave_data/1623-290.html
+++ b/cave_data/1623-290.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-290</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-290</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Fischgesicht H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>5/Sx</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-291.html b/cave_data/1623-291.html
index b16a2b2d6..4c00c38a9 100644
--- a/cave_data/1623-291.html
+++ b/cave_data/1623-291.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-291</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-291</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gl&uuml;ckliche Schmetterlingsh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-292.html b/cave_data/1623-292.html
index c5981af28..24bf33eac 100644
--- a/cave_data/1623-292.html
+++ b/cave_data/1623-292.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-292</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-292</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Motte H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-293.html b/cave_data/1623-293.html
index 8cb09f2cf..be89c8b0f 100644
--- a/cave_data/1623-293.html
+++ b/cave_data/1623-293.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-293</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-293</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Blocklufth&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-294.html b/cave_data/1623-294.html
index 014a9b39d..d8d96dbc3 100644
--- a/cave_data/1623-294.html
+++ b/cave_data/1623-294.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-294</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-294</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Rhabarberh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-295.html b/cave_data/1623-295.html
index 4a6856879..712f8422a 100644
--- a/cave_data/1623-295.html
+++ b/cave_data/1623-295.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-295</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-295</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Keine Wassermelone H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-296.html b/cave_data/1623-296.html
index 9452b46ad..e34a518b6 100644
--- a/cave_data/1623-296.html
+++ b/cave_data/1623-296.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-296</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-296</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Doppel Gemse H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-297.html b/cave_data/1623-297.html
index 874d3794b..302fbf4ee 100644
--- a/cave_data/1623-297.html
+++ b/cave_data/1623-297.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-297</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-297</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Haizahnh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-298.html b/cave_data/1623-298.html
index 457e9fab5..3abe15a83 100644
--- a/cave_data/1623-298.html
+++ b/cave_data/1623-298.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-298</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-298</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Zufallsschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-3.html b/cave_data/1623-3.html
index b913ce3fc..a9b4fceb0 100644
--- a/cave_data/1623-3.html
+++ b/cave_data/1623-3.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-3</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-3</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gellerofen</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T(W) +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-30.html b/cave_data/1623-30.html
index 567a415ca..ede06fb36 100644
--- a/cave_data/1623-30.html
+++ b/cave_data/1623-30.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-30</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-30</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Grundloses Loch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-303.html b/cave_data/1623-303.html
index 1935f8a10..e153b11f8 100644
--- a/cave_data/1623-303.html
+++ b/cave_data/1623-303.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-303</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-303</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Höhle bei der Ankunft tot</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-304.html b/cave_data/1623-304.html
index ac9151aa6..7004d3c93 100644
--- a/cave_data/1623-304.html
+++ b/cave_data/1623-304.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-mg-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-mg-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Doppellochhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-305.html b/cave_data/1623-305.html
index 9d4aa259e..a50467247 100644
--- a/cave_data/1623-305.html
+++ b/cave_data/1623-305.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-mg-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-mg-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Adidas Lederhosen Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-306.html b/cave_data/1623-306.html
index cb6aef62f..cc12a1684 100644
--- a/cave_data/1623-306.html
+++ b/cave_data/1623-306.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-17</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-17</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gollum Grotte</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-307.html b/cave_data/1623-307.html
index 5e07a9b9f..7dab94690 100644
--- a/cave_data/1623-307.html
+++ b/cave_data/1623-307.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kleine Zelthöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-308.html b/cave_data/1623-308.html
index 51c82ea36..29fe66930 100644
--- a/cave_data/1623-308.html
+++ b/cave_data/1623-308.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-08</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-08</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Top-Camp-Bandhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-309.html b/cave_data/1623-309.html
index ddb528b37..f0cac1016 100644
--- a/cave_data/1623-309.html
+++ b/cave_data/1623-309.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-09</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-09</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Fledermaus- versus Rattenhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-31.html b/cave_data/1623-31.html
index e07489ab9..f3004aca8 100644
--- a/cave_data/1623-31.html
+++ b/cave_data/1623-31.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-31</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-31</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Elchh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-310.html b/cave_data/1623-310.html
index a040e4304..535ea9259 100644
--- a/cave_data/1623-310.html
+++ b/cave_data/1623-310.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-mg-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-mg-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schlüssellochhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-311.html b/cave_data/1623-311.html
index 35b7bb8c4..ec098ca4d 100644
--- a/cave_data/1623-311.html
+++ b/cave_data/1623-311.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ASH-16</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ASH-16</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Langweiliges Loch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-312.html b/cave_data/1623-312.html
index 41483f27b..8448aa51a 100644
--- a/cave_data/1623-312.html
+++ b/cave_data/1623-312.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-RAWDB-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-RAWDB-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Bergschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-313.html b/cave_data/1623-313.html
index 9833a3433..a0ef83c6f 100644
--- a/cave_data/1623-313.html
+++ b/cave_data/1623-313.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-RAWDB-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-RAWDB-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Totes Ballonloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-314.html b/cave_data/1623-314.html
index 90cc08465..a646444b4 100644
--- a/cave_data/1623-314.html
+++ b/cave_data/1623-314.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-KT-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-KT-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Silbermottenhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-315.html b/cave_data/1623-315.html
index fa9949d2b..82a4f566e 100644
--- a/cave_data/1623-315.html
+++ b/cave_data/1623-315.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-JSS-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-JSS-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Mendip-Männerhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-316.html b/cave_data/1623-316.html
index 8e2318471..4439efd99 100644
--- a/cave_data/1623-316.html
+++ b/cave_data/1623-316.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-KT-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-KT-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Katzenaugenhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-317.html b/cave_data/1623-317.html
index f1134a3ea..193da3ccd 100644
--- a/cave_data/1623-317.html
+++ b/cave_data/1623-317.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-ft-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-ft-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Mahlstromhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-318.html b/cave_data/1623-318.html
index 39464bec5..6a426bd52 100644
--- a/cave_data/1623-318.html
+++ b/cave_data/1623-318.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-lc-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-lc-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Tempesthöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-319.html b/cave_data/1623-319.html
index c1c8db4b8..b3231d4c6 100644
--- a/cave_data/1623-319.html
+++ b/cave_data/1623-319.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-MM-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-MM-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Der Sturm 2</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-32.html b/cave_data/1623-32.html
index 8deee3988..c65278f05 100644
--- a/cave_data/1623-32.html
+++ b/cave_data/1623-32.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-32</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-32</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Windloch am St&ouml;gerweg</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-320.html b/cave_data/1623-320.html
index c46891add..a8a331f29 100644
--- a/cave_data/1623-320.html
+++ b/cave_data/1623-320.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-hbrw-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-hbrw-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Unglückliche Gämsenhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-321.html b/cave_data/1623-321.html
index 0dbadea62..f040d3f87 100644
--- a/cave_data/1623-321.html
+++ b/cave_data/1623-321.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-hbrw-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-hbrw-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kleiner Abfluss Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-322.html b/cave_data/1623-322.html
index 2085bac30..d347a279c 100644
--- a/cave_data/1623-322.html
+++ b/cave_data/1623-322.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-hbrw-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-hbrw-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Mittlerer Abfluss Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-323.html b/cave_data/1623-323.html
index 44093c28a..56c43d854 100644
--- a/cave_data/1623-323.html
+++ b/cave_data/1623-323.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-2023-hbrw-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-2023-hbrw-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Amphitheater Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-33.html b/cave_data/1623-33.html
index 38e71e535..79b6c1685 100644
--- a/cave_data/1623-33.html
+++ b/cave_data/1623-33.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-33</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-33</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schichtgrenzenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-34.html b/cave_data/1623-34.html
index 81749755c..6bd11a24a 100644
--- a/cave_data/1623-34.html
+++ b/cave_data/1623-34.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-34</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-34</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hle am Kratzer I</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-35.html b/cave_data/1623-35.html
index 6af48d658..8a8bd58f0 100644
--- a/cave_data/1623-35.html
+++ b/cave_data/1623-35.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-35</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-35</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Dr. Kerschner H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/T x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-37.html b/cave_data/1623-37.html
index ef700b7e1..d40c504c0 100644
--- a/cave_data/1623-37.html
+++ b/cave_data/1623-37.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-37</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-37</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schachtgruppe beim Hinterer Schwarzmooskogel</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-38.html b/cave_data/1623-38.html
index efe4e6959..11bd73eb7 100644
--- a/cave_data/1623-38.html
+++ b/cave_data/1623-38.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-38</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-38</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Algenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-39.html b/cave_data/1623-39.html
index af76ea0af..92cf61c6c 100644
--- a/cave_data/1623-39.html
+++ b/cave_data/1623-39.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-39</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-39</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>SCHWA h&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-4.html b/cave_data/1623-4.html
index ece9ed89b..fc0d25d6d 100644
--- a/cave_data/1623-4.html
+++ b/cave_data/1623-4.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-4</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-4</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ritscherbachh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T(W) +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-40.html b/cave_data/1623-40.html
index e5308fc3e..1bd1aed41 100644
--- a/cave_data/1623-40.html
+++ b/cave_data/1623-40.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-40</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-40</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwarzmooskogeleish&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>7/S/T/E x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-41.html b/cave_data/1623-41.html
index 59dde72d3..7c740020f 100644
--- a/cave_data/1623-41.html
+++ b/cave_data/1623-41.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-41</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-41</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Stellerwegh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>7/S/T/E x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-42.html b/cave_data/1623-42.html
index 26cfc86ba..d8ed74a97 100644
--- a/cave_data/1623-42.html
+++ b/cave_data/1623-42.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-42</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-42</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Wasserschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-43.html b/cave_data/1623-43.html
index c6d3a98d8..e6971c56f 100644
--- a/cave_data/1623-43.html
+++ b/cave_data/1623-43.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-43</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-43</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hle beim Wackelstein</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-44.html b/cave_data/1623-44.html
index 9797bc044..730b271a4 100644
--- a/cave_data/1623-44.html
+++ b/cave_data/1623-44.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-44</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-44</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hle am Kratzer II</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-45.html b/cave_data/1623-45.html
index 975f96157..38fc15fb2 100644
--- a/cave_data/1623-45.html
+++ b/cave_data/1623-45.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-45</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-45</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Dannerschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S/E +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-46.html b/cave_data/1623-46.html
index 6da5566f3..822ac2f14 100644
--- a/cave_data/1623-46.html
+++ b/cave_data/1623-46.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-46</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-46</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Engelbrechth&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-47.html b/cave_data/1623-47.html
index 5d7bea50c..8f9142c1b 100644
--- a/cave_data/1623-47.html
+++ b/cave_data/1623-47.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-47</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-47</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>SCHWA h&ouml;hle 47</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-48.html b/cave_data/1623-48.html
index aa6ffbc60..d763edfcd 100644
--- a/cave_data/1623-48.html
+++ b/cave_data/1623-48.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-48</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-48</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>SCHWA h&ouml;hle 48</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-49.html b/cave_data/1623-49.html
index d3dfb856d..03faa89d8 100644
--- a/cave_data/1623-49.html
+++ b/cave_data/1623-49.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-49</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-49</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>SCHWA h&ouml;hle 49</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-5.html b/cave_data/1623-5.html
index 5df962716..d6f4fcc0b 100644
--- a/cave_data/1623-5.html
+++ b/cave_data/1623-5.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-5</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-5</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Holzknechtbr&uuml;nndlloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S(W) +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-50.html b/cave_data/1623-50.html
index 430d545be..543b6e6f5 100644
--- a/cave_data/1623-50.html
+++ b/cave_data/1623-50.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-50</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-50</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>SCHWA h&ouml;hle 50</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-51.html b/cave_data/1623-51.html
index 5e8c22d77..82840b755 100644
--- a/cave_data/1623-51.html
+++ b/cave_data/1623-51.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-51</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-51</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hlen 1-3 in Wei&szlig;e Wand</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-52.html b/cave_data/1623-52.html
index 651e0a0e7..7a03f7407 100644
--- a/cave_data/1623-52.html
+++ b/cave_data/1623-52.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-52</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-52</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Sennerkeller &amp; Sauloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S/W +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-53.html b/cave_data/1623-53.html
index 4751c87fb..253b5ae0e 100644
--- a/cave_data/1623-53.html
+++ b/cave_data/1623-53.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-53</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-53</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gellerli&auml;ger</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-54.html b/cave_data/1623-54.html
index dc12c9190..c7b11e6e9 100644
--- a/cave_data/1623-54.html
+++ b/cave_data/1623-54.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-54</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-54</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Seeh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-55.html b/cave_data/1623-55.html
index 4e9e99186..17cc6f50c 100644
--- a/cave_data/1623-55.html
+++ b/cave_data/1623-55.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-55</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-55</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schachth&ouml;hle west. Hochanger</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S/T =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-56.html b/cave_data/1623-56.html
index 5f3533268..62a18adc1 100644
--- a/cave_data/1623-56.html
+++ b/cave_data/1623-56.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-56</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-56</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Hornsteinh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-57.html b/cave_data/1623-57.html
index a9794d4bc..ec194fda5 100644
--- a/cave_data/1623-57.html
+++ b/cave_data/1623-57.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-57</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-57</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hle unterhalb der Schafkirche</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-58.html b/cave_data/1623-58.html
index c8db89bc1..abc451ec2 100644
--- a/cave_data/1623-58.html
+++ b/cave_data/1623-58.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-58</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-58</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>H&ouml;hle unterhalb ab Pauli-Loch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-59.html b/cave_data/1623-59.html
index 25454956a..7f5e2e4a9 100644
--- a/cave_data/1623-59.html
+++ b/cave_data/1623-59.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-59</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-59</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Bruchshutth&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-6.html b/cave_data/1623-6.html
index 10532ea50..7f330a754 100644
--- a/cave_data/1623-6.html
+++ b/cave_data/1623-6.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-6</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-6</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Quelle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>0/W +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-60.html b/cave_data/1623-60.html
index efb4aa1b4..9b2da4563 100644
--- a/cave_data/1623-60.html
+++ b/cave_data/1623-60.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-60</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-60</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schacht I-IV bei Gschwandalm</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-61.html b/cave_data/1623-61.html
index 1096e6ff7..7e8d5b2cc 100644
--- a/cave_data/1623-61.html
+++ b/cave_data/1623-61.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-61</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-61</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gemsbockh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-62.html b/cave_data/1623-62.html
index a345092e9..a4b7f2a64 100644
--- a/cave_data/1623-62.html
+++ b/cave_data/1623-62.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-62</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-62</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Dolinenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-63.html b/cave_data/1623-63.html
index a51b26009..9a081abcb 100644
--- a/cave_data/1623-63.html
+++ b/cave_data/1623-63.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-63</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-63</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Pseudoskorpionh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-64.html b/cave_data/1623-64.html
index 1e93c7bc9..4dbb4762f 100644
--- a/cave_data/1623-64.html
+++ b/cave_data/1623-64.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-64</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-64</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gr. Durchgangsh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-65.html b/cave_data/1623-65.html
index e5aa44959..50cc0be7d 100644
--- a/cave_data/1623-65.html
+++ b/cave_data/1623-65.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-65</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-65</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Widderh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-66.html b/cave_data/1623-66.html
index 17ec21a98..095f4aee7 100644
--- a/cave_data/1623-66.html
+++ b/cave_data/1623-66.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-66</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-66</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>L&ouml;ckerwegh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T+</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-67.html b/cave_data/1623-67.html
index 422f1037b..bc6903cfc 100644
--- a/cave_data/1623-67.html
+++ b/cave_data/1623-67.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-67</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-67</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Biwakh&ouml;hle am Loser</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-68.html b/cave_data/1623-68.html
index cb0b4a869..b5e35b3d8 100644
--- a/cave_data/1623-68.html
+++ b/cave_data/1623-68.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-68</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-68</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kleine B&auml;renh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-69.html b/cave_data/1623-69.html
index 5dd656f04..5d3c7b6da 100644
--- a/cave_data/1623-69.html
+++ b/cave_data/1623-69.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-69</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-69</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schacht am Gschirr</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-7.html b/cave_data/1623-7.html
index 4b39eb264..09c0c6624 100644
--- a/cave_data/1623-7.html
+++ b/cave_data/1623-7.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-7</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-7</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Bachschl&auml;g</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/(W) +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-70.html b/cave_data/1623-70.html
index 254076297..f5b7896f4 100644
--- a/cave_data/1623-70.html
+++ b/cave_data/1623-70.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-70</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-70</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schneckenloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-71.html b/cave_data/1623-71.html
index 86db76653..cb630db69 100644
--- a/cave_data/1623-71.html
+++ b/cave_data/1623-71.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-71</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-71</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Fledermaush&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S/W +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-72.html b/cave_data/1623-72.html
index ee6b235bc..918bec667 100644
--- a/cave_data/1623-72.html
+++ b/cave_data/1623-72.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-72</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-72</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Skeletth&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-73.html b/cave_data/1623-73.html
index df3304735..814e097be 100644
--- a/cave_data/1623-73.html
+++ b/cave_data/1623-73.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-73</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-73</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Suppentellerschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-74.html b/cave_data/1623-74.html
index b16ff475c..9bb40d03c 100644
--- a/cave_data/1623-74.html
+++ b/cave_data/1623-74.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-74</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-74</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schneckenhaush&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-75.html b/cave_data/1623-75.html
index 92b54b276..d17677200 100644
--- a/cave_data/1623-75.html
+++ b/cave_data/1623-75.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-75</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-75</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Wisenth&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-76.html b/cave_data/1623-76.html
index e81637b95..5315ae19e 100644
--- a/cave_data/1623-76.html
+++ b/cave_data/1623-76.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-76</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-76</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Eislufth&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>5/S/E x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-77.html b/cave_data/1623-77.html
index 175706c81..10151a757 100644
--- a/cave_data/1623-77.html
+++ b/cave_data/1623-77.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-77</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-77</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Fichtenschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-78.html b/cave_data/1623-78.html
index ed1854a32..7b36ddeba 100644
--- a/cave_data/1623-78.html
+++ b/cave_data/1623-78.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-78</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-78</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwaben(schacht)h&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>5/S/t/E x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-79.html b/cave_data/1623-79.html
index e4d2c6af1..9d4334016 100644
--- a/cave_data/1623-79.html
+++ b/cave_data/1623-79.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-79</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-79</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Badenerschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-8.html b/cave_data/1623-8.html
index 96b920726..3980eaff1 100644
--- a/cave_data/1623-8.html
+++ b/cave_data/1623-8.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-8</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-8</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Gro&szlig;es Loserloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-82.html b/cave_data/1623-82.html
index 7b487837d..9705409e9 100644
--- a/cave_data/1623-82.html
+++ b/cave_data/1623-82.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-82</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-82</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Br&auml;uningh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>4/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-83.html b/cave_data/1623-83.html
index a8421a4ac..56c5c949d 100644
--- a/cave_data/1623-83.html
+++ b/cave_data/1623-83.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-83</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-83</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 83</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-84.html b/cave_data/1623-84.html
index 882638ae1..000a23bd9 100644
--- a/cave_data/1623-84.html
+++ b/cave_data/1623-84.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-84</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-84</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa H&ouml;hle 84</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-86.html b/cave_data/1623-86.html
index 44ab2b93a..b06c2e6de 100644
--- a/cave_data/1623-86.html
+++ b/cave_data/1623-86.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-86</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-86</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 86</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-87.html b/cave_data/1623-87.html
index 11ab8b4ca..cb1e4bf8c 100644
--- a/cave_data/1623-87.html
+++ b/cave_data/1623-87.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-87</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-87</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schacht 87 neben St&ouml;gerweg</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>3/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-88.html b/cave_data/1623-88.html
index 926d6ffb8..227a6c01e 100644
--- a/cave_data/1623-88.html
+++ b/cave_data/1623-88.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-88</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-88</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>L&auml;rchenschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>3/S/T x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-88F.html b/cave_data/1623-88F.html
index e38a2b56e..81fdab97a 100644
--- a/cave_data/1623-88F.html
+++ b/cave_data/1623-88F.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-88F</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-88F</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-88H.html b/cave_data/1623-88H.html
index 9a3385e8e..f7a4f36ea 100644
--- a/cave_data/1623-88H.html
+++ b/cave_data/1623-88H.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-88H</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-88H</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-89.html b/cave_data/1623-89.html
index c5bf09cb3..4a7abb02c 100644
--- a/cave_data/1623-89.html
+++ b/cave_data/1623-89.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-89</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-89</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schwa Schacht 89</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-9.html b/cave_data/1623-9.html
index 345573e75..9ba57942f 100644
--- a/cave_data/1623-9.html
+++ b/cave_data/1623-9.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-9</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-9</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kleines Loserloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-90.html b/cave_data/1623-90.html
index b8fc8554e..f11f06eb2 100644
--- a/cave_data/1623-90.html
+++ b/cave_data/1623-90.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-90</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-90</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Br&auml;u Schacht 90</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-91.html b/cave_data/1623-91.html
index 30ed2cd5c..b1c1d73a1 100644
--- a/cave_data/1623-91.html
+++ b/cave_data/1623-91.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-91</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-91</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Br&auml;u Schacht 91</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-92.html b/cave_data/1623-92.html
index 832cd9259..2c999b9e8 100644
--- a/cave_data/1623-92.html
+++ b/cave_data/1623-92.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-92</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-92</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Br&auml;u Schacht 92</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-96.html b/cave_data/1623-96.html
index 3ba19ab17..d8fed8a3b 100644
--- a/cave_data/1623-96.html
+++ b/cave_data/1623-96.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-96</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-96</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Br&auml;u Schacht 96</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>3/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-97.html b/cave_data/1623-97.html
index 23556695b..ef45f9750 100644
--- a/cave_data/1623-97.html
+++ b/cave_data/1623-97.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-97</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-97</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schneewindschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>4/S/W x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-98.html b/cave_data/1623-98.html
index db75ee7ba..820eb97e9 100644
--- a/cave_data/1623-98.html
+++ b/cave_data/1623-98.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-98</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-98</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Plateau Schacht 98</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-A1.html b/cave_data/1623-A1.html
index 3c995f34c..14d753d27 100644
--- a/cave_data/1623-A1.html
+++ b/cave_data/1623-A1.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-A1</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-A1</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>CUCC 1976/A1</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-B1.html b/cave_data/1623-B1.html
index c4bd07fe8..3fa072369 100644
--- a/cave_data/1623-B1.html
+++ b/cave_data/1623-B1.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-B1</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-B1</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>CUCC 1976/B1</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-B10.html b/cave_data/1623-B10.html
index ef1e539b2..eb439d3b0 100644
--- a/cave_data/1623-B10.html
+++ b/cave_data/1623-B10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-B10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-B10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>CUCC 1976/B10</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-B2.html b/cave_data/1623-B2.html
index 135db66f8..b368c3441 100644
--- a/cave_data/1623-B2.html
+++ b/cave_data/1623-B2.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-B2</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-B2</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>CUCC 1976/B2</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-B3.html b/cave_data/1623-B3.html
index a45f3e50b..8e7ce5d2d 100644
--- a/cave_data/1623-B3.html
+++ b/cave_data/1623-B3.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-B3</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-B3</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>CUCC 1976/B3</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-B4.html b/cave_data/1623-B4.html
index baa5d4cd9..0415f0e15 100644
--- a/cave_data/1623-B4.html
+++ b/cave_data/1623-B4.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-B4</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-B4</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>CUCC 1976/B4</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-B5.html b/cave_data/1623-B5.html
index 42d16321a..728e4e599 100644
--- a/cave_data/1623-B5.html
+++ b/cave_data/1623-B5.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-B5</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-B5</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>CUCC 1976/B5</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-B6.html b/cave_data/1623-B6.html
index c231f2776..eb47964fd 100644
--- a/cave_data/1623-B6.html
+++ b/cave_data/1623-B6.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-B6</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-B6</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>CUCC 1976/B6</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-BS1-15.html b/cave_data/1623-BS1-15.html
index 0be083a1d..b063b0604 100644
--- a/cave_data/1623-BS1-15.html
+++ b/cave_data/1623-BS1-15.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-BS1-15</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-BS1-15</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-BS16.html b/cave_data/1623-BS16.html
index e855f30c7..5871cf98c 100644
--- a/cave_data/1623-BS16.html
+++ b/cave_data/1623-BS16.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-BS16</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-BS16</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>BS16</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-BS18.html b/cave_data/1623-BS18.html
index 8497b23d3..7478cb92f 100644
--- a/cave_data/1623-BS18.html
+++ b/cave_data/1623-BS18.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-BS18</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-BS18</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-BS19.html b/cave_data/1623-BS19.html
index 87fafcb7c..d00ea30a8 100644
--- a/cave_data/1623-BS19.html
+++ b/cave_data/1623-BS19.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-BS19</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-BS19</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-BS20.html b/cave_data/1623-BS20.html
index 186df7ce0..68e6f0d2a 100644
--- a/cave_data/1623-BS20.html
+++ b/cave_data/1623-BS20.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-BS20</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-BS20</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-Blaubeer.html b/cave_data/1623-Blaubeer.html
index 10ef6e6fb..c7327037f 100644
--- a/cave_data/1623-Blaubeer.html
+++ b/cave_data/1623-Blaubeer.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-Blaubeer</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-Blaubeer</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-Haldenloch.html b/cave_data/1623-Haldenloch.html
index 7532df6d0..e04f11286 100644
--- a/cave_data/1623-Haldenloch.html
+++ b/cave_data/1623-Haldenloch.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-Haldenloch</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-Haldenloch</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Haldenloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-Juttahoehle.html b/cave_data/1623-Juttahoehle.html
index 3e852922c..9e5aaeff9 100644
--- a/cave_data/1623-Juttahoehle.html
+++ b/cave_data/1623-Juttahoehle.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-Juttahoehle</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-Juttahoehle</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-LA26.html b/cave_data/1623-LA26.html
index 0684ef7b5..aaa07c9bc 100644
--- a/cave_data/1623-LA26.html
+++ b/cave_data/1623-LA26.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-LA26</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-LA26</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>LUSS/LA26</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>2/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-LA27.html b/cave_data/1623-LA27.html
index 70fafa67d..32e8912b9 100644
--- a/cave_data/1623-LA27.html
+++ b/cave_data/1623-LA27.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-LA27</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-LA27</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>LUSS/LA27</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/T +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-LA30.html b/cave_data/1623-LA30.html
index 3107daa79..3a658d020 100644
--- a/cave_data/1623-LA30.html
+++ b/cave_data/1623-LA30.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-LA30</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-LA30</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>LUSS/LA30</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-LA35.html b/cave_data/1623-LA35.html
index b110ab709..8c914a943 100644
--- a/cave_data/1623-LA35.html
+++ b/cave_data/1623-LA35.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-LA35</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-LA35</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>LUSS/LA35</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-LA37.html b/cave_data/1623-LA37.html
index 5a1461e4e..3fd979e47 100644
--- a/cave_data/1623-LA37.html
+++ b/cave_data/1623-LA37.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-LA37</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-LA37</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>LUSS/LA37</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-LA38.html b/cave_data/1623-LA38.html
index c314755a1..952cec96f 100644
--- a/cave_data/1623-LA38.html
+++ b/cave_data/1623-LA38.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-LA38</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-LA38</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>LUSS/LA38</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-LA40.html b/cave_data/1623-LA40.html
index 194ddda10..844e215f1 100644
--- a/cave_data/1623-LA40.html
+++ b/cave_data/1623-LA40.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-LA40</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-LA40</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>LUSS/LA40</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code>1/E +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1623-rentner.html b/cave_data/1623-rentner.html
index 158f3150d..215f1cf92 100644
--- a/cave_data/1623-rentner.html
+++ b/cave_data/1623-rentner.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-rentner</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1623-rentner</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Rentner-Express</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1623</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1624-1.html b/cave_data/1624-1.html
index a79a4a3b7..f71694bd7 100644
--- a/cave_data/1624-1.html
+++ b/cave_data/1624-1.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1624-1</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1624-1</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ohrhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1624</area><!-- e.g. "1623" -->
 <kataster_code>2/?</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1624-120.html b/cave_data/1624-120.html
index b59e4ee27..ee5e38c11 100644
--- a/cave_data/1624-120.html
+++ b/cave_data/1624-120.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1624-120</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1624-120</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>HS-Nebenhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1624</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1624-122.html b/cave_data/1624-122.html
index c308e02db..28b490fa3 100644
--- a/cave_data/1624-122.html
+++ b/cave_data/1624-122.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1624-122</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1624-122</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1624</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1624-138.html b/cave_data/1624-138.html
index f99a2c599..8476f0067 100644
--- a/cave_data/1624-138.html
+++ b/cave_data/1624-138.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1624-138</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1624-138</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Unterhosenhöhle (pants)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1624</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1624-162.html b/cave_data/1624-162.html
index 7ad11a330..a5d4a1b66 100644
--- a/cave_data/1624-162.html
+++ b/cave_data/1624-162.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1624-162</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1624-162</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Osteologinnenhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1624</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1624-170.html b/cave_data/1624-170.html
index be715648b..a5e949205 100644
--- a/cave_data/1624-170.html
+++ b/cave_data/1624-170.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1624-170</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1624-170</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Dreiganghöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1624</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1624-190.html b/cave_data/1624-190.html
index 85ae86ed6..d64398956 100644
--- a/cave_data/1624-190.html
+++ b/cave_data/1624-190.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1624-190</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1624-190</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schweigende Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1624</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-10.html b/cave_data/1626-10.html
index 59771fe8b..eb53405b0 100644
--- a/cave_data/1626-10.html
+++ b/cave_data/1626-10.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-10</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-10</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Eisbodentichter</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-101.html b/cave_data/1626-101.html
index 7d7786158..7fc7d830c 100644
--- a/cave_data/1626-101.html
+++ b/cave_data/1626-101.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-101</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-101</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Mike-Luckwill-Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-102.html b/cave_data/1626-102.html
index b3e521139..d32c40c10 100644
--- a/cave_data/1626-102.html
+++ b/cave_data/1626-102.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-102</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-102</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kameradschaftshoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-111.html b/cave_data/1626-111.html
index f4ca22bc1..1ffa53b4f 100644
--- a/cave_data/1626-111.html
+++ b/cave_data/1626-111.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-111</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-111</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Wehrkogelhoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-117.html b/cave_data/1626-117.html
index 75aa1166c..c3e0eaca4 100644
--- a/cave_data/1626-117.html
+++ b/cave_data/1626-117.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-117</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-117</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Trunkemboldschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>3/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-118.html b/cave_data/1626-118.html
index 36174062c..49493462b 100644
--- a/cave_data/1626-118.html
+++ b/cave_data/1626-118.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-118</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-118</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ottoloch H2</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-120.html b/cave_data/1626-120.html
index a70a2919e..0c06d21fb 100644
--- a/cave_data/1626-120.html
+++ b/cave_data/1626-120.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-120</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-120</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Feuertalsystem</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>4/T/S x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-122.html b/cave_data/1626-122.html
index 6658befc0..adcd9b798 100644
--- a/cave_data/1626-122.html
+++ b/cave_data/1626-122.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-122</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-122</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ufoschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>3/S =</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-13.html b/cave_data/1626-13.html
index c7f4ad496..6ce72f738 100644
--- a/cave_data/1626-13.html
+++ b/cave_data/1626-13.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-13</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-13</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Fliegenschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-154.html b/cave_data/1626-154.html
index b1282e9f9..35f0b79e8 100644
--- a/cave_data/1626-154.html
+++ b/cave_data/1626-154.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-154</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-154</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Flaschenschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-155.html b/cave_data/1626-155.html
index 460d371ab..2d9b6709c 100644
--- a/cave_data/1626-155.html
+++ b/cave_data/1626-155.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-155</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-155</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schneekirchl</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-16.html b/cave_data/1626-16.html
index 47e3695a9..b98fa5b5e 100644
--- a/cave_data/1626-16.html
+++ b/cave_data/1626-16.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-16</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-16</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-187.html b/cave_data/1626-187.html
index a7e846871..27d9fa43f 100644
--- a/cave_data/1626-187.html
+++ b/cave_data/1626-187.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-187</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-187</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Christbaumloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2.html b/cave_data/1626-2.html
index 5628ce055..7f72aade2 100644
--- a/cave_data/1626-2.html
+++ b/cave_data/1626-2.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kein-Problem-Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-AD-02.html b/cave_data/1626-2018-AD-02.html
index 4a18a0975..c2a078fe2 100644
--- a/cave_data/1626-2018-AD-02.html
+++ b/cave_data/1626-2018-AD-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-AD-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-AD-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Garlic Cave</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-DM-01.html b/cave_data/1626-2018-DM-01.html
index 593f7b825..a74fc1ae1 100644
--- a/cave_data/1626-2018-DM-01.html
+++ b/cave_data/1626-2018-DM-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-DM-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-DM-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-DM-02.html b/cave_data/1626-2018-DM-02.html
index e6abb9095..b8af7de5b 100644
--- a/cave_data/1626-2018-DM-02.html
+++ b/cave_data/1626-2018-DM-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-DM-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-DM-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-DM-03.html b/cave_data/1626-2018-DM-03.html
index abae63071..07bf75c35 100644
--- a/cave_data/1626-2018-DM-03.html
+++ b/cave_data/1626-2018-DM-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-DM-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-DM-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-DM-04.html b/cave_data/1626-2018-DM-04.html
index b515c6b34..8601b6249 100644
--- a/cave_data/1626-2018-DM-04.html
+++ b/cave_data/1626-2018-DM-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-DM-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-DM-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Bunderstruck Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-DM-05.html b/cave_data/1626-2018-DM-05.html
index c057529f4..ec1b2ad5a 100644
--- a/cave_data/1626-2018-DM-05.html
+++ b/cave_data/1626-2018-DM-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-DM-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-DM-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-DM-06.html b/cave_data/1626-2018-DM-06.html
index ef13b8f54..35cc0ae96 100644
--- a/cave_data/1626-2018-DM-06.html
+++ b/cave_data/1626-2018-DM-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-DM-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-DM-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-ad-03.html b/cave_data/1626-2018-ad-03.html
index 97a92bcd5..5ee2b7772 100644
--- a/cave_data/1626-2018-ad-03.html
+++ b/cave_data/1626-2018-ad-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-ad-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-ad-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Crushed Garlic (Loveshack)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-ms-02.html b/cave_data/1626-2018-ms-02.html
index 5c876c82b..8004c0dad 100644
--- a/cave_data/1626-2018-ms-02.html
+++ b/cave_data/1626-2018-ms-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-ms-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-ms-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Blitz Baum Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-ms-03.html b/cave_data/1626-2018-ms-03.html
index 1d770a94e..45313996e 100644
--- a/cave_data/1626-2018-ms-03.html
+++ b/cave_data/1626-2018-ms-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-ms-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-ms-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-ms-04.html b/cave_data/1626-2018-ms-04.html
index c1bce44fe..f4456d8a7 100644
--- a/cave_data/1626-2018-ms-04.html
+++ b/cave_data/1626-2018-ms-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-ms-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-ms-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Zufall h&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-pw-01.html b/cave_data/1626-2018-pw-01.html
index 5bad3ba46..4f01617c6 100644
--- a/cave_data/1626-2018-pw-01.html
+++ b/cave_data/1626-2018-pw-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-pw-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-pw-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Trois Dents</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-pw-02.html b/cave_data/1626-2018-pw-02.html
index b1671491e..19f8b657c 100644
--- a/cave_data/1626-2018-pw-02.html
+++ b/cave_data/1626-2018-pw-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-pw-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-pw-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-pw-03.html b/cave_data/1626-2018-pw-03.html
index 9edf2fbcd..2728437d2 100644
--- a/cave_data/1626-2018-pw-03.html
+++ b/cave_data/1626-2018-pw-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-pw-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-pw-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>VMKBAH höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-tk-01.html b/cave_data/1626-2018-tk-01.html
index 1783ea28d..96d6581c2 100644
--- a/cave_data/1626-2018-tk-01.html
+++ b/cave_data/1626-2018-tk-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-tk-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-tk-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2018-tk-02.html b/cave_data/1626-2018-tk-02.html
index fe2ad9892..8de1da744 100644
--- a/cave_data/1626-2018-tk-02.html
+++ b/cave_data/1626-2018-tk-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2018-tk-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2018-tk-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2019-HT-01.html b/cave_data/1626-2019-HT-01.html
index e5e6d88b8..52b8041a1 100644
--- a/cave_data/1626-2019-HT-01.html
+++ b/cave_data/1626-2019-HT-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2019-HT-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2019-HT-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Das Bananenloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2019-HT-02.html b/cave_data/1626-2019-HT-02.html
index a02cf96f3..441e040ef 100644
--- a/cave_data/1626-2019-HT-02.html
+++ b/cave_data/1626-2019-HT-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2019-HT-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2019-HT-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Boop-Boo-Da-Boop-Da-Boop</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2019-rh-01.html b/cave_data/1626-2019-rh-01.html
index 40e7b7739..9e3453687 100644
--- a/cave_data/1626-2019-rh-01.html
+++ b/cave_data/1626-2019-rh-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2019-rh-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2019-rh-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2019-rh-02.html b/cave_data/1626-2019-rh-02.html
index 594b0fab0..9aca4fbb6 100644
--- a/cave_data/1626-2019-rh-02.html
+++ b/cave_data/1626-2019-rh-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2019-rh-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2019-rh-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-202.html b/cave_data/1626-202.html
index 6c242c62c..c9e7d9739 100644
--- a/cave_data/1626-202.html
+++ b/cave_data/1626-202.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-202</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-202</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ab_in_den_Sueden</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BL-01.html b/cave_data/1626-2023-BL-01.html
index 1f78b65ad..07d47866a 100644
--- a/cave_data/1626-2023-BL-01.html
+++ b/cave_data/1626-2023-BL-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BL-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BL-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BL-02.html b/cave_data/1626-2023-BL-02.html
index f3a8bc600..bdfba5d4a 100644
--- a/cave_data/1626-2023-BL-02.html
+++ b/cave_data/1626-2023-BL-02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BL-02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BL-02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BL-03.html b/cave_data/1626-2023-BL-03.html
index 283dfb428..3d2c16efc 100644
--- a/cave_data/1626-2023-BL-03.html
+++ b/cave_data/1626-2023-BL-03.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BL-03</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BL-03</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BL-04.html b/cave_data/1626-2023-BL-04.html
index 387a798a3..07f6cf2c4 100644
--- a/cave_data/1626-2023-BL-04.html
+++ b/cave_data/1626-2023-BL-04.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BL-04</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BL-04</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Boulder block cave</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BL-05.html b/cave_data/1626-2023-BL-05.html
index 05d50967b..1b9be4151 100644
--- a/cave_data/1626-2023-BL-05.html
+++ b/cave_data/1626-2023-BL-05.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BL-05</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BL-05</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BL-06.html b/cave_data/1626-2023-BL-06.html
index 4a35163a5..eac87abe5 100644
--- a/cave_data/1626-2023-BL-06.html
+++ b/cave_data/1626-2023-BL-06.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BL-06</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BL-06</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BL-07.html b/cave_data/1626-2023-BL-07.html
index 583f4d672..4f9cb12b9 100644
--- a/cave_data/1626-2023-BL-07.html
+++ b/cave_data/1626-2023-BL-07.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BL-07</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BL-07</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BL-08.html b/cave_data/1626-2023-BL-08.html
index c21c125cb..569e7b5db 100644
--- a/cave_data/1626-2023-BL-08.html
+++ b/cave_data/1626-2023-BL-08.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BL-08</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BL-08</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BL-09.html b/cave_data/1626-2023-BL-09.html
index 0b40fafd1..5c91dfdae 100644
--- a/cave_data/1626-2023-BL-09.html
+++ b/cave_data/1626-2023-BL-09.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BL-09</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BL-09</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-BuzzardHole.html b/cave_data/1626-2023-BuzzardHole.html
index f619527ca..a8964ba70 100644
--- a/cave_data/1626-2023-BuzzardHole.html
+++ b/cave_data/1626-2023-BuzzardHole.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-BuzzardHole</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-BuzzardHole</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-2023-ww-01.html b/cave_data/1626-2023-ww-01.html
index 0c4e4f45e..0a19b216e 100644
--- a/cave_data/1626-2023-ww-01.html
+++ b/cave_data/1626-2023-ww-01.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-2023-ww-01</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-2023-ww-01</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ancient Technology</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-203.html b/cave_data/1626-203.html
index 6d8f9a47a..16357a9fe 100644
--- a/cave_data/1626-203.html
+++ b/cave_data/1626-203.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-203</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-203</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Wildkar-Hoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-205.html b/cave_data/1626-205.html
index 4ebfffcab..218a87708 100644
--- a/cave_data/1626-205.html
+++ b/cave_data/1626-205.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-205</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-205</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-207.html b/cave_data/1626-207.html
index 6ee2df832..64c398c25 100644
--- a/cave_data/1626-207.html
+++ b/cave_data/1626-207.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-207</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-207</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-257.html b/cave_data/1626-257.html
index a39285fdb..5fd623d6e 100644
--- a/cave_data/1626-257.html
+++ b/cave_data/1626-257.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-257</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-257</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Einstiegsschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-27.html b/cave_data/1626-27.html
index 93bf533ec..79ef95514 100644
--- a/cave_data/1626-27.html
+++ b/cave_data/1626-27.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-27</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-27</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-29.html b/cave_data/1626-29.html
index d981bd76f..19385bc0e 100644
--- a/cave_data/1626-29.html
+++ b/cave_data/1626-29.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-29</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-29</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Sonnscheinhoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-3.html b/cave_data/1626-3.html
index 1369d7319..9af7f1539 100644
--- a/cave_data/1626-3.html
+++ b/cave_data/1626-3.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-3</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-3</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Toti-Eisloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-33.html b/cave_data/1626-33.html
index 1b5c7675c..2eac161b0 100644
--- a/cave_data/1626-33.html
+++ b/cave_data/1626-33.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-33</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-33</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Horizontalteil</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-354.html b/cave_data/1626-354.html
index 957d201f9..c9a5e3599 100644
--- a/cave_data/1626-354.html
+++ b/cave_data/1626-354.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-354</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-354</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>LangGustl</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-359.html b/cave_data/1626-359.html
index a94853918..33468a19d 100644
--- a/cave_data/1626-359.html
+++ b/cave_data/1626-359.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-359</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-359</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Heimkommenhöhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-361.html b/cave_data/1626-361.html
index 5dd368856..78d2bdd5f 100644
--- a/cave_data/1626-361.html
+++ b/cave_data/1626-361.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-361</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-361</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Hübel-Höhle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-40.html b/cave_data/1626-40.html
index e906f6c20..5eeafe54c 100644
--- a/cave_data/1626-40.html
+++ b/cave_data/1626-40.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-40</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-40</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Fritzlhoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-46.html b/cave_data/1626-46.html
index 8fe887ccb..72e4897f3 100644
--- a/cave_data/1626-46.html
+++ b/cave_data/1626-46.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-46</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-46</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Neue_Plagitzerhoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-49.html b/cave_data/1626-49.html
index 777355c6f..387ceb247 100644
--- a/cave_data/1626-49.html
+++ b/cave_data/1626-49.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-49</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-49</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Felsbogenhoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-5.html b/cave_data/1626-5.html
index 1b6d632a5..9aa2abd6c 100644
--- a/cave_data/1626-5.html
+++ b/cave_data/1626-5.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-5</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-5</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Nagelstegh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>2/W +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-50.html b/cave_data/1626-50.html
index b0d26b965..712afe334 100644
--- a/cave_data/1626-50.html
+++ b/cave_data/1626-50.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-50</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-50</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ahnenschacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>3/S/T</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-52.html b/cave_data/1626-52.html
index 7ce092ee9..d53e3490c 100644
--- a/cave_data/1626-52.html
+++ b/cave_data/1626-52.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-52</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-52</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Grushoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>-</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-55.html b/cave_data/1626-55.html
index 8eaf71852..c605bf657 100644
--- a/cave_data/1626-55.html
+++ b/cave_data/1626-55.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>True</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-55</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-55</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Raucherkarh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>4/T/S/E x</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-7.html b/cave_data/1626-7.html
index 01e5cd96e..99952f415 100644
--- a/cave_data/1626-7.html
+++ b/cave_data/1626-7.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-7</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-7</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Mittereckhoehle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-71.html b/cave_data/1626-71.html
index 3967bcaa9..112ea08ea 100644
--- a/cave_data/1626-71.html
+++ b/cave_data/1626-71.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-71</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-71</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Zick-Zack-Schacht</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-8.html b/cave_data/1626-8.html
index 7fb5cfe83..8f1dba7ae 100644
--- a/cave_data/1626-8.html
+++ b/cave_data/1626-8.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-8</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-8</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-9.html b/cave_data/1626-9.html
index 51e85cb1b..7c1d83dba 100644
--- a/cave_data/1626-9.html
+++ b/cave_data/1626-9.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-9</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-9</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-E02.html b/cave_data/1626-E02.html
index e12531c46..0fcaedff6 100644
--- a/cave_data/1626-E02.html
+++ b/cave_data/1626-E02.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-E02</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-E02</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Fliffies (E09?)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-E09.html b/cave_data/1626-E09.html
index 88b06fde5..d26d237d8 100644
--- a/cave_data/1626-E09.html
+++ b/cave_data/1626-E09.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-E09</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-E09</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Roehre Höhle (E09)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-E16.html b/cave_data/1626-E16.html
index b8770ac40..32b258403 100644
--- a/cave_data/1626-E16.html
+++ b/cave_data/1626-E16.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-E16</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-E16</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Ich muss mal (Die Mausefalle)</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-E28.html b/cave_data/1626-E28.html
index 41c8dbfb9..db1f411e2 100644
--- a/cave_data/1626-E28.html
+++ b/cave_data/1626-E28.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-E28</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-E28</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Alladin mit der Wunderlampe</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-LA11.html b/cave_data/1626-LA11.html
index 0bda4c913..304b42b97 100644
--- a/cave_data/1626-LA11.html
+++ b/cave_data/1626-LA11.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-LA11</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-LA11</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Lungeh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>2/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-LA12.html b/cave_data/1626-LA12.html
index 44d3bec71..ca4a40393 100644
--- a/cave_data/1626-LA12.html
+++ b/cave_data/1626-LA12.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-LA12</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-LA12</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Sternloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>3/S -</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-LA34.html b/cave_data/1626-LA34.html
index 171fa0169..0c6491547 100644
--- a/cave_data/1626-LA34.html
+++ b/cave_data/1626-LA34.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-LA34</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-LA34</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>R&auml;tselh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code>3/S +</kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-Loutotihoehle.html b/cave_data/1626-Loutotihoehle.html
index 571963f48..ad39bc07b 100644
--- a/cave_data/1626-Loutotihoehle.html
+++ b/cave_data/1626-Loutotihoehle.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-Loutotihoehle</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-Loutotihoehle</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-casino.html b/cave_data/1626-casino.html
index 34954f251..19c8058f7 100644
--- a/cave_data/1626-casino.html
+++ b/cave_data/1626-casino.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-casino</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-casino</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1626-upside-down.html b/cave_data/1626-upside-down.html
index d55f7aee0..0f2e06e96 100644
--- a/cave_data/1626-upside-down.html
+++ b/cave_data/1626-upside-down.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1626-upside-down</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1626-upside-down</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1626</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-702.html b/cave_data/1627-702.html
index 7b2646129..3712ef372 100644
--- a/cave_data/1627-702.html
+++ b/cave_data/1627-702.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-702</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-702</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Eisrohrschach</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-703.html b/cave_data/1627-703.html
index 67863bb88..a70a147f7 100644
--- a/cave_data/1627-703.html
+++ b/cave_data/1627-703.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-703</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-703</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Al herrenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-706.html b/cave_data/1627-706.html
index 0bc470a45..2f1430775 100644
--- a/cave_data/1627-706.html
+++ b/cave_data/1627-706.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-706</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-706</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Unaussprechliche</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-729.html b/cave_data/1627-729.html
index 3be3191e8..3f7503e1a 100644
--- a/cave_data/1627-729.html
+++ b/cave_data/1627-729.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-729</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-729</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Lehmlabyrinth</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-734.html b/cave_data/1627-734.html
index 8679d38c5..901e1b130 100644
--- a/cave_data/1627-734.html
+++ b/cave_data/1627-734.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-734</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-734</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Megalodon</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-736.html b/cave_data/1627-736.html
index 1adcae184..e8079d81a 100644
--- a/cave_data/1627-736.html
+++ b/cave_data/1627-736.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-736</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-736</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Aussprechliche H&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-737.html b/cave_data/1627-737.html
index 139c86484..b24eefba4 100644
--- a/cave_data/1627-737.html
+++ b/cave_data/1627-737.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-737</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-737</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Kraddlerloch</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-738.html b/cave_data/1627-738.html
index ae20c13bd..7ed5b416b 100644
--- a/cave_data/1627-738.html
+++ b/cave_data/1627-738.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-738</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-738</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Q-Blumenschach</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-739.html b/cave_data/1627-739.html
index 0551633e6..6b19d01b3 100644
--- a/cave_data/1627-739.html
+++ b/cave_data/1627-739.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-739</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-739</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Glashaus</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-742.html b/cave_data/1627-742.html
index 3335c1233..bd736c745 100644
--- a/cave_data/1627-742.html
+++ b/cave_data/1627-742.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-742</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-742</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Illegaler Harem</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-796.html b/cave_data/1627-796.html
index f4e0726e5..4681359d3 100644
--- a/cave_data/1627-796.html
+++ b/cave_data/1627-796.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-796</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-796</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name>Schaumal-Bärenh&ouml;hle</official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
diff --git a/cave_data/1627-798.html b/cave_data/1627-798.html
index 628b9ac86..f607b25c0 100644
--- a/cave_data/1627-798.html
+++ b/cave_data/1627-798.html
@@ -17,7 +17,7 @@ the form documented at
 
 <cave>
 <non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1627-798</caveslug><!--(Required). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
+<caveslug>1627-798</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195'  -->
 <official_name></official_name><!-- Name of the cave (normally in German)  Use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
 <area>1627</area><!-- e.g. "1623" -->
 <kataster_code></kataster_code><!-- 'length-or-depth/type exploration'