diff --git a/admin/inc/class.admin_customfields.inc.php b/admin/inc/class.admin_customfields.inc.php
index 5fefe92abf..daba24c140 100644
--- a/admin/inc/class.admin_customfields.inc.php
+++ b/admin/inc/class.admin_customfields.inc.php
@@ -89,7 +89,8 @@ class admin_customfields
 		'radio'		=> 'each value is a line like id[=label], or use @path to read options from a file in EGroupware directory',
 		'button'	=> 'each value is a line like label=[javascript]',
 		'password'  => 'set length=# for minimum password length, strength=# for password strength',
-		'serial'    => 'you can set an initial value, which gets incremented every time a new serial get generated'
+		'serial'    => 'you can set an initial value, which gets incremented every time a new serial get generated',
+		'filemanager' => "use the following options:\nnoVfsSelect=1\nmime=application/pdf or /^image\//i\naccept=pdf,docx\nmax_upload_size=2M",
 	);
 
 	/**
@@ -126,6 +127,10 @@ class admin_customfields
 			$this->content_types = Api\Config::get_content_types($this->appname);
 		}
 		$this->so = new Api\Storage\Base('api','egw_customfields',null,'',true);
+
+		// Make sure app css & lang get loaded, extending app might cause et2 to miss it
+		Framework::includeCSS('admin','app');
+		Api\Translation::add_app('admin');
 	}
 
 	/**
@@ -280,10 +285,6 @@ class admin_customfields
 		$readonlys = null;
 		static::app_index($content, $sel_options, $readonlys, $preserve);
 
-		// Make sure app css & lang get loaded, extending app might cause et2 to miss it
-		Framework::includeCSS('admin','app');
-		Api\Translation::add_app('admin');
-
 		// Set app to admin to make sure actions are correctly loaded into admin
 		$GLOBALS['egw_info']['flags']['currentapp'] = 'admin';
 		$GLOBALS['egw_info']['flags']['app_header'] = $GLOBALS['egw_info']['apps'][$this->appname]['title'].' - '.lang('Custom fields');
@@ -384,7 +385,7 @@ class admin_customfields
 						{
 							$values['@'] = substr($content['cf_values'], $content['cf_values'][1] === '=' ? 2:1);
 						}
-						elseif (isset($GLOBALS['egw_info']['apps'][$content['cf_type']]))
+						elseif (isset($GLOBALS['egw_info']['apps'][$content['cf_type']]) && $content['cf_type'] !== 'filemanager')
 						{
 							if (!empty($content['cf_values']) && ($content['cf_values'][0] !== '{' || ($values=json_decode($content['cf_values'])) === null))
 							{
@@ -478,7 +479,7 @@ class admin_customfields
 			{
 				$readonlys['cf_values'] = true; // only allow to set start-value, but not change it after
 			}
-			if (!isset($GLOBALS['egw_info']['apps'][$content['cf_type']]))
+			if (!isset($GLOBALS['egw_info']['apps'][$content['cf_type']]) || $content['cf_type'] === 'filemanager')
 			{
 				$content['cf_values'] = json_decode($content['cf_values'], true);
 			}
diff --git a/admin/lang/egw_de.lang b/admin/lang/egw_de.lang
index 7a9de6bbcb..073550e4ae 100644
--- a/admin/lang/egw_de.lang
+++ b/admin/lang/egw_de.lang
@@ -990,6 +990,7 @@ use pure html compliant code (not fully working yet)	admin	de	Vollständig HTML
 use save or apply to store the received oauth token!	admin	de	Benutze Speicher oder Übernehmen um das erhaltene OAuth-Token zu speichern!
 use secure cookies (transmitted only via https)	admin	de	Benutze sichere Cookies (werden nur per HTTPS übertragen)
 use smtp auth	admin	de	SMTP Authentifizierung benutzen
+use the following options:\nnovfsselect=1\nmime=application/pdf or /^image\//i\naccept=pdf,docx\nmax_upload_size=2m	admin	de	Benutzen Sie folgende Optionen:\nnoVfsSelect=1\nmime=application/pdf or /^image\//i\naccept=pdf,docx\nmax_upload_size=2M
 use theme	admin	de	Benutztes Farbschema
 use tls authentication	admin	de	TLS-Authentifizierung benutzen
 use tls encryption	admin	de	TLS-Verschlüsselung benutzen
diff --git a/admin/lang/egw_en.lang b/admin/lang/egw_en.lang
index 7f257f3f28..095eebe111 100644
--- a/admin/lang/egw_en.lang
+++ b/admin/lang/egw_en.lang
@@ -990,6 +990,7 @@ use pure html compliant code (not fully working yet)	admin	en	Use pure HTML comp
 use save or apply to store the received oauth token!	admin	en	Use save or apply to store the received OAuth token!
 use secure cookies (transmitted only via https)	admin	en	Use secure cookies (transmitted only via HTTPS)
 use smtp auth	admin	en	Use SMTP authentication
+use the following options:\nnovfsselect=1\nmime=application/pdf or /^image\//i\naccept=pdf,docx\nmax_upload_size=2m	admin	en	use the following options:\nnoVfsSelect=1\nmime=application/pdf or /^image\//i\naccept=pdf,docx\nmax_upload_size=2M
 use theme	admin	en	Use theme
 use tls authentication	admin	en	Use TLS authentication
 use tls encryption	admin	en	Use TLS encryption
diff --git a/api/js/etemplate/et2_extension_customfields.ts b/api/js/etemplate/et2_extension_customfields.ts
index dcb3f7b49e..f8d2fc8478 100644
--- a/api/js/etemplate/et2_extension_customfields.ts
+++ b/api/js/etemplate/et2_extension_customfields.ts
@@ -926,30 +926,34 @@ export class et2_customfields_list extends et2_valueWidget implements et2_IDetac
 			this.rows[attrs.id] = cf[0];
 			jQuery(widget.getDOMNode(widget)).css('vertical-align','top');
 
-			// Add a link to existing VFS file
-			const required = attrs.needed ?? attrs.required;
-			delete attrs.needed;
-			const select_attrs = {
-				...attrs,
-				// Filemanager select
-				...{
-					path: '~',
-					mode: widget.options.multiple ? 'open-multiple' : 'open',
-					method: 'EGroupware\\Api\\Etemplate\\Widget\\Link::ajax_link_existing',
-					methodId: attrs.path,
-					buttonLabel: this.egw().lang('Link')
-				},
-				type: 'et2-vfs-select',
-				required: required
+			// should we show the VfsSelect
+			if (!field.values || typeof field.values !== 'object' || !field.values.noVfsSelect)
+			{
+				// Add a link to existing VFS file
+				const required = attrs.needed ?? attrs.required;
+				delete attrs.needed;
+				const select_attrs = {
+					...attrs,
+					// Filemanager select
+					...{
+						path: '~',
+						mode: widget.options.multiple ? 'open-multiple' : 'open',
+						method: 'EGroupware\\Api\\Etemplate\\Widget\\Link::ajax_link_existing',
+						methodId: attrs.path,
+						buttonLabel: this.egw().lang('Link')
+					},
+					type: 'et2-vfs-select',
+					required: required
+				}
+				select_attrs.id = attrs.id + '_vfs_select';
+
+				// This controls where the button is placed in the DOM
+				this.rows[select_attrs.id] = cf[0];
+
+				// Do not store in the widgets list, one name for multiple widgets would cause problems
+				widget = <Et2VfsSelectButton>loadWebComponent(select_attrs.type, select_attrs, this);
+				jQuery(widget.getDOMNode(widget)).css('vertical-align','top').prependTo(cf);
 			}
-			select_attrs.id = attrs.id + '_vfs_select';
-
-			// This controls where the button is placed in the DOM
-			this.rows[select_attrs.id] = cf[0];
-
-			// Do not store in the widgets list, one name for multiple widgets would cause problems
-			widget = <Et2VfsSelectButton>loadWebComponent(select_attrs.type, select_attrs, this);
-			jQuery(widget.getDOMNode(widget)).css('vertical-align','top').prependTo(cf);
 		}
 		return false;
 	}