diff --git a/CHANGELOG b/CHANGELOG
index 89bebdd2f..e8a474a16 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -312,6 +312,8 @@
 - checking of ssl certificate for smtp can be turned off
 - add chart for disk space per month
 - clearing cache of js files works for a large number of files
+- WebDAV returns `quota-used-bytes` and `quota-available-bytes`
+- fix settings SeedDMS attributes in WebDAV server
 
 --------------------------------------------------------------------------------
                      Changes in version 5.1.35
diff --git a/composer-dist.json b/composer-dist.json
index 9fa2763ce..dfba0ba79 100644
--- a/composer-dist.json
+++ b/composer-dist.json
@@ -30,6 +30,9 @@
         "seeddms/sqlitefts": "dev-master",
         "seeddms/http_webdav_server": "dev-master"
     },
+    "require-dev": {
+        "composer/composer": "dev-main"
+    },
     "repositories": [
         {
             "type": "path",
diff --git a/conf/settings.xml.template b/conf/settings.xml.template
index a7c8b232d..233b6d7fd 100644
--- a/conf/settings.xml.template
+++ b/conf/settings.xml.template
@@ -57,7 +57,7 @@
       enableLanguageSelector = "true"
       stopWordsFile = ""
       sortUsersInList = ""
-      enableDropUpload = "false"
+      enableDropUpload = "true"
       enableRecursiveCount = "false"
       maxRecursiveCount = "0"
       enableThemeSelector = "true"
@@ -112,6 +112,7 @@
       dropFolderDir = ""
       cacheDir = ""
       backupDir = ""
+      logFileMaxLevel="6"
     />
     <!--
        - enableGuestLogin: If you want anybody to login as guest, set the following line to true
diff --git a/op/op.Categories.php b/op/op.Categories.php
index 8cbea9575..5616028e8 100644
--- a/op/op.Categories.php
+++ b/op/op.Categories.php
@@ -35,7 +35,7 @@ if (!$user->isAdmin()) {
 if (isset($_POST["action"])) $action=$_POST["action"];
 else $action=NULL;
 
-//Neue Kategorie anlegen -----------------------------------------------------------------------------
+// Add new category ---------------------------------------------------------
 if ($action == "addcategory") {
 	
 	/* Check if the form data comes from a trusted request */
@@ -60,7 +60,7 @@ if ($action == "addcategory") {
 	add_log_line(".php&action=addcategory&categoryid=".$categoryid);
 }
 
-//Kategorie l�schen ----------------------------------------------------------------------------------
+// Delete category ---------------------------------------------------------
 else if ($action == "removecategory") {
 
 	/* Check if the form data comes from a trusted request */
@@ -86,7 +86,7 @@ else if ($action == "removecategory") {
 	$categoryid=-1;
 }
 
-//Kategorie bearbeiten: Neuer Name --------------------------------------------------------------------
+// Edit category -----------------------------------------------------------
 else if ($action == "editcategory") {
 
 	/* Check if the form data comes from a trusted request */
@@ -118,4 +118,3 @@ else {
 
 header("Location:../out/out.Categories.php?categoryid=".$categoryid);
 
-?>
diff --git a/views/bootstrap/class.Categories.php b/views/bootstrap/class.Categories.php
index b623a3c10..0ab5fd950 100644
--- a/views/bootstrap/class.Categories.php
+++ b/views/bootstrap/class.Categories.php
@@ -72,7 +72,9 @@ $(document).ready( function() {
 				if($conversionmgr)
 					$previewer->setConversionMgr($conversionmgr);
 				foreach($documents as $doc) {
-					echo $this->documentListRow($doc, $previewer);
+					$extracontent = array();
+					$extracontent['below_title'] = $this->getListRowPath($doc);
+					echo $this->documentListRow($doc, $previewer, false, 0, $extracontent);
 				}
 				print "</tbody></table>";
 			}
@@ -173,9 +175,11 @@ $(document).ready( function() {
 <?php
 		$this->columnEnd();
 		$this->columnStart(6);
+		echo $this->callHook('rightContentPre', $selcat);
 ?>
 			<div class="ajax" data-view="Categories" data-action="form" <?php echo ($selcat ? "data-query=\"categoryid=".$selcat->getID()."\"" : "") ?>></div>
 <?php
+		echo $this->callHook('rightContentPost', $selcat);
 		$this->columnEnd();
 		$this->rowEnd();
 
diff --git a/views/bootstrap/class.Settings.php b/views/bootstrap/class.Settings.php
index e7a2df97c..9142c73b0 100644
--- a/views/bootstrap/class.Settings.php
+++ b/views/bootstrap/class.Settings.php
@@ -677,8 +677,11 @@ if(($kkk = $this->callHook('getFullSearchEngine')) && is_array($kkk))
 			echo '<a class="scrollto" data-target="#'.$extname.'">'.$extconf['title']."</a> ● ";
 	}
 	foreach($extmgr->getExtensionConfiguration() as $extname=>$extconf) {
-		if($this->hasHook('processConfig'))
-			$extconf = $this->callHook('processConfig', $extname, $extconf);
+		if($this->hasHook('processConfig')) {
+			$ttt = $this->callHook('processConfig', $extname, $extconf);
+			if($ttt)
+				$extconf = $ttt;
+		}
 		if($this->isVisible($extname.'|')) {
 			if($extconf['config']) {
 				$this->showRawConfigHeadline("<a id=\"".$extname."\" name=\"".$extname."\"></a>".'<input type="hidden" name="extensions['.$extname.'][__disable__]" value="'.(isset($settings->_extensions[$extname]["__disable__"]) && $settings->_extensions[$extname]["__disable__"] ? '1' : '').'" /><i class="fa fa-circle'.(isset($settings->_extensions[$extname]["__disable__"]) && $settings->_extensions[$extname]["__disable__"] ? ' disabled' : ' enabled').'"></i> <span title="'.$extname.'">'.$extconf['title'].'</span>');
diff --git a/webdav/webdav.php b/webdav/webdav.php
index a51360dda..f6f950755 100644
--- a/webdav/webdav.php
+++ b/webdav/webdav.php
@@ -59,6 +59,22 @@ class HTTP_WebDAV_Server_SeedDMS extends HTTP_WebDAV_Server
 	 */
 	var $user = "";
 
+	/**
+	 * Disk space occupied by user
+	 *
+	 * @access private
+	 * @var	int
+	 */
+	private $diskspace;
+
+	/**
+	 * Max disk space occupied by user
+	 *
+	 * @access private
+	 * @var	int
+	 */
+	private $quota;
+
 	/**
 	 * Set to true if original file shall be used instead of document name
 	 * This can lead to duplicate file names in a directory because the original
@@ -191,6 +207,8 @@ class HTTP_WebDAV_Server_SeedDMS extends HTTP_WebDAV_Server
 			$this->logger->log('check_auth: type='.$type.', user='.$user.' authenticated', PEAR_LOG_INFO);
 
 		$this->user = $controller->getUser();
+		$this->diskspace = $this->user->getUsedDiskSpace();
+		$this->quota = $this->user->getQuota();
 		if(!$this->user) {
 			if($this->logger) {
 				$this->logger->log($controller->getErrorMsg(), PEAR_LOG_NOTICE);
@@ -402,6 +420,9 @@ class HTTP_WebDAV_Server_SeedDMS extends HTTP_WebDAV_Server
 			$info["props"][] = $this->mkprop("displayname", $obj->getName());
 			$info["props"][] = $this->mkprop("resourcetype", "collection");
 			$info["props"][] = $this->mkprop("getcontenttype", "httpd/unix-directory");
+			$info["props"][] = $this->mkprop("quota-used-bytes", $this->diskspace);
+			if($this->quota)
+				$info["props"][] = $this->mkprop("quota-available-bytes", $this->quota-$this->diskspace);
 		} else {
 			// modification time
 			$info["props"][] = $this->mkprop("getlastmodified",$obj->getLatestContent()->getDate());
@@ -464,13 +485,68 @@ class HTTP_WebDAV_Server_SeedDMS extends HTTP_WebDAV_Server
 		if($attributes) {
 			foreach($attributes as $attribute) {
 				$attrdef = $attribute->getAttributeDefinition();
-				$valueset = $attrdef->getValueSetAsArray();
-				if($valueset && $attrdef->getMultipleValues()) {
+//				$fname = 'attr_'.$attrdef->getId();//str_replace(array(' ',  '|'), array('', ''), $attrdef->getName());
+				$attrregex = '/[^a-zA-ZÄäÜüÖöß0-9_-]/';
+				$fname = 'attr_'.preg_replace($attrregex, '', $attrdef->getName());
+				$isvalueset = $attrdef->getValueSet();
+				$ismulti = $attrdef->getMultipleValues();
+				$fvalue = null;
+				if($ismulti) {
+					switch($attrdef->getType()) {
+					case SeedDMS_Core_AttributeDefinition::type_int:
+						$fvalue = $attribute->getValueAsArray();
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_date:
+						$fvalue = array_map(fn($value): int => strtotime($value), $attribute->getValueAsArray());
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_document:
+						$fvalue = array_map(fn($value): string => $value->getName(), $attribute->getValueAsArray());
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_folder:
+						$fvalue = array_map(fn($value): string => $value->getName(), $attribute->getValueAsArray());
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_user:
+						$fvalue = array_map(fn($value): string => $value->getFullName(), $attribute->getValueAsArray());
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_group:
+						$fvalue = array_map(fn($value): string => $value->getName(), $attribute->getValueAsArray());
+						break;
+					default:
+						$fvalue = $attribute->getValue();
+					}
 					$valuesetstr = $attrdef->getValueSet();
 					$delimiter = substr($valuesetstr, 0, 1);
-					$info["props"][] = $this->mkprop("SeedDMS:", 'attr_'.str_replace(array(' ', '|'), array('', ''), $attrdef->getName()), $delimiter.implode($delimiter, $attribute->getValueAsArray()));
-				} else
-					$info["props"][] = $this->mkprop("SeedDMS:", 'attr_'.str_replace(array(' ','|'), array('', '',''), $attrdef->getName()), $attribute->getValue());
+					$fvalue = $delimiter.implode($delimiter, $fvalue);
+				} else {
+					switch($attrdef->getType()) {
+					case SeedDMS_Core_AttributeDefinition::type_int:
+						$fvalue = (int) $attribute->getValue();
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_date:
+						$fvalue = strtotime($attribute->getValue());
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_document:
+						$fvalue = $attribute->getValue()->getName();
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_folder:
+						$fvalue = $attribute->getValue()->getName();
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_user:
+						$fvalue = $attribute->getValue()->getFullName();
+						break;
+					case SeedDMS_Core_AttributeDefinition::type_group:
+						$fvalue = $attribute->getValue()->getName();
+						break;
+					default:
+						$fvalue = $attribute->getValue();
+					}
+				}
+				if($fvalue) {
+//					if($this->logger) {
+//						$this->logger->log('Adding property '.$fname." = ".$fvalue, PEAR_LOG_INFO);
+//					}
+					$info["props"][] = $this->mkprop("SeedDMS:", $fname, $fvalue);
+				}
 			}
 		}