diff --git a/openatlas/static/manual/.buildinfo b/openatlas/static/manual/.buildinfo
index 280be436d..f556a2284 100644
--- a/openatlas/static/manual/.buildinfo
+++ b/openatlas/static/manual/.buildinfo
@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
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+config: ea4f7d1abf9d61cf7e151f52536f0bbb
 tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/openatlas/static/manual/.doctrees/admin/import.doctree b/openatlas/static/manual/.doctrees/admin/import.doctree
index c87738ecc..2a79eef55 100644
Binary files a/openatlas/static/manual/.doctrees/admin/import.doctree and b/openatlas/static/manual/.doctrees/admin/import.doctree differ
diff --git a/openatlas/static/manual/.doctrees/environment.pickle b/openatlas/static/manual/.doctrees/environment.pickle
index ee52978bb..58fa26077 100644
Binary files a/openatlas/static/manual/.doctrees/environment.pickle and b/openatlas/static/manual/.doctrees/environment.pickle differ
diff --git a/openatlas/static/manual/_static/documentation_options.js b/openatlas/static/manual/_static/documentation_options.js
index 732ad76f8..d51459c71 100644
--- a/openatlas/static/manual/_static/documentation_options.js
+++ b/openatlas/static/manual/_static/documentation_options.js
@@ -1,6 +1,6 @@
 var DOCUMENTATION_OPTIONS = {
     URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
-    VERSION: '8.8.0',
+    VERSION: '8.9.0',
     LANGUAGE: 'en',
     COLLAPSE_INDEX: false,
     BUILDER: 'html',
diff --git a/openatlas/static/manual/admin/api.html b/openatlas/static/manual/admin/api.html
index f5dc5ba15..d8b53faeb 100644
--- a/openatlas/static/manual/admin/api.html
+++ b/openatlas/static/manual/admin/api.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>API &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>API &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/arche.html b/openatlas/static/manual/admin/arche.html
index 704e026fb..82aa530ad 100644
--- a/openatlas/static/manual/admin/arche.html
+++ b/openatlas/static/manual/admin/arche.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>ARCHE &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>ARCHE &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
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@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/content.html b/openatlas/static/manual/admin/content.html
index 660feb9b4..074298370 100644
--- a/openatlas/static/manual/admin/content.html
+++ b/openatlas/static/manual/admin/content.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Content &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Content &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/data_integrity_checks.html b/openatlas/static/manual/admin/data_integrity_checks.html
index 9a5c5deff..bfa2e965d 100644
--- a/openatlas/static/manual/admin/data_integrity_checks.html
+++ b/openatlas/static/manual/admin/data_integrity_checks.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Data integrity checks &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Data integrity checks &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/execute_sql.html b/openatlas/static/manual/admin/execute_sql.html
index 528c27b84..3ff8293dc 100644
--- a/openatlas/static/manual/admin/execute_sql.html
+++ b/openatlas/static/manual/admin/execute_sql.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Execute SQL &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Execute SQL &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/export.html b/openatlas/static/manual/admin/export.html
index 70290f039..6850a42f3 100644
--- a/openatlas/static/manual/admin/export.html
+++ b/openatlas/static/manual/admin/export.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Export &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Export &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/general.html b/openatlas/static/manual/admin/general.html
index 1d97e30c2..65da0ad14 100644
--- a/openatlas/static/manual/admin/general.html
+++ b/openatlas/static/manual/admin/general.html
@@ -5,7 +5,7 @@
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>General &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>General &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/iiif.html b/openatlas/static/manual/admin/iiif.html
index f787c76b2..b1c098afd 100644
--- a/openatlas/static/manual/admin/iiif.html
+++ b/openatlas/static/manual/admin/iiif.html
@@ -5,7 +5,7 @@
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>IIIF &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>IIIF &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/import.html b/openatlas/static/manual/admin/import.html
index 500445f9a..47487b7af 100644
--- a/openatlas/static/manual/admin/import.html
+++ b/openatlas/static/manual/admin/import.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Import &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Import &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
@@ -214,10 +214,10 @@ <h2>Possible import fields<a class="headerlink" href="#possible-import-fields" t
 </section>
 <section id="dates">
 <span id="dates-import"></span><h3>Dates<a class="headerlink" href="#dates" title="Permalink to this heading"></a></h3>
-<p>Dates can be entered in the format <strong>YYYY-MM-DD</strong>. Fill out the <strong>begin_from</strong>
-and <strong>end_from</strong> field for a known timeframe. For a timespan you can use
-<strong>begin_to</strong> and <strong>end_to</strong> in combination with <strong>begin_from</strong>
-and <strong>end_from</strong>. For more information see: <a class="reference internal" href="../ui/date.html"><span class="doc">Date</span></a>.</p>
+<p>Dates can be entered in the format <strong>YYYY-MM-DD</strong>, <strong>YYYY-MM</strong> or <strong>YYYY</strong>.
+Fill out the <strong>begin_from</strong> and <strong>end_from</strong> field for a known timeframe.
+For a timespan you can use <strong>begin_to</strong> and <strong>end_to</strong> in combination
+with <strong>begin_from</strong> and <strong>end_from</strong>. For more information see: <a class="reference internal" href="../ui/date.html"><span class="doc">Date</span></a>.</p>
 <p>Keep in mind:</p>
 <ul class="simple">
 <li><p>if the date format is incorrect, it will be displayed in red and won’t be
diff --git a/openatlas/static/manual/admin/index.html b/openatlas/static/manual/admin/index.html
index 632728a3e..ff10e0aab 100644
--- a/openatlas/static/manual/admin/index.html
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@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Admin &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Admin &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/mail.html b/openatlas/static/manual/admin/mail.html
index 4c59b3dc0..2c8001d49 100644
--- a/openatlas/static/manual/admin/mail.html
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Mail &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Mail &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
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@@ -35,7 +35,7 @@
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           </a>
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-                8.8.0
+                8.9.0
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   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/map.html b/openatlas/static/manual/admin/map.html
index ae6144fbe..fe67859c3 100644
--- a/openatlas/static/manual/admin/map.html
+++ b/openatlas/static/manual/admin/map.html
@@ -5,7 +5,7 @@
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Map &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Map &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/modules.html b/openatlas/static/manual/admin/modules.html
index 8add9fc38..19d8ec7c3 100644
--- a/openatlas/static/manual/admin/modules.html
+++ b/openatlas/static/manual/admin/modules.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Modules &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Modules &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
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@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/presentation_site.html b/openatlas/static/manual/admin/presentation_site.html
index 88b000fca..93f27dd76 100644
--- a/openatlas/static/manual/admin/presentation_site.html
+++ b/openatlas/static/manual/admin/presentation_site.html
@@ -5,7 +5,7 @@
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Presentation site &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Presentation site &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
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@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/user.html b/openatlas/static/manual/admin/user.html
index b379b14e5..e5095f963 100644
--- a/openatlas/static/manual/admin/user.html
+++ b/openatlas/static/manual/admin/user.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>User &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>User &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
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@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/admin/vocabs.html b/openatlas/static/manual/admin/vocabs.html
index 112e63e21..2bc919a04 100644
--- a/openatlas/static/manual/admin/vocabs.html
+++ b/openatlas/static/manual/admin/vocabs.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Vocabs &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Vocabs &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/entity/actor.html b/openatlas/static/manual/entity/actor.html
index 05ccc42c7..bb45e0336 100644
--- a/openatlas/static/manual/entity/actor.html
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@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Actor &mdash; OpenAtlas 8.8.0 documentation</title>
+  <title>Actor &mdash; OpenAtlas 8.9.0 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/style.css" type="text/css" />
@@ -35,7 +35,7 @@
               <img src="../_static/logo.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                8.8.0
+                8.9.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
diff --git a/openatlas/static/manual/entity/artifact.html b/openatlas/static/manual/entity/artifact.html
index 8bea0ad09..aaee97aa8 100644
--- a/openatlas/static/manual/entity/artifact.html
+++ b/openatlas/static/manual/entity/artifact.html
@@ -5,7 +5,7 @@
   <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
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