diff --git a/openslides/agenda/static/js/agenda/site.js b/openslides/agenda/static/js/agenda/site.js
index 594181d74..bf279cf53 100644
--- a/openslides/agenda/static/js/agenda/site.js
+++ b/openslides/agenda/static/js/agenda/site.js
@@ -216,6 +216,10 @@ angular.module('OpenSlidesApp.agenda.site', ['OpenSlidesApp.agenda'])
         $scope.speakerSelectBox = {};
         $scope.alert = {};
         $scope.speakers = $filter('orderBy')(item.speakers, 'weight');
+
+        // limit the number of users in ui-select field
+        $scope.limitUsers = 50;
+
         $scope.$watch(function () {
             return Agenda.lastModified();
         }, function () {
diff --git a/openslides/agenda/static/templates/agenda/item-detail.html b/openslides/agenda/static/templates/agenda/item-detail.html
index 797323d63..12ffaafca 100644
--- a/openslides/agenda/static/templates/agenda/item-detail.html
+++ b/openslides/agenda/static/templates/agenda/item-detail.html
@@ -135,7 +135,7 @@
         <ui-select-match placeholder="{{ 'Select or search a participant ...' | translate }}">
           {{ $select.selected.get_full_name() }}
         </ui-select-match>
-        <ui-select-choices repeat="user in users | filter: $select.search">
+        <ui-select-choices repeat="user in users | filter: $select.search | limitTo: limitUsers">
           <div ng-bind-html="user.get_full_name() | highlight: $select.search"></div>
         </ui-select-choices>
       </ui-select>
diff --git a/openslides/agenda/static/templates/agenda/item-list.html b/openslides/agenda/static/templates/agenda/item-list.html
index 4ced3496b..b2b856df8 100644
--- a/openslides/agenda/static/templates/agenda/item-list.html
+++ b/openslides/agenda/static/templates/agenda/item-list.html
@@ -203,5 +203,8 @@
             <a href="" ng-click="editDialog(item)" class="pull-right"><translate>Edit ...</translate></a>
           </div>
   </table>
-  <uib-pagination total-items="itemsFiltered.length" items-per-page="itemsPerPage" ng-model="currentPage" ng-change="pageChanged()"></uib-pagination>
+  <uib-pagination ng-if="itemsFiltered.length > itemsPerPage" total-items="itemsFiltered.length" items-per-page="itemsPerPage" ng-model="currentPage"
+      ng-change="pageChanged()"
+      class="pagination-sm" direction-links="false" boundary-links="true" first-text="&laquo;" last-text="&raquo;">
+  </uib-pagination>
 </div>
diff --git a/openslides/agenda/static/templates/agenda/item-sort.html b/openslides/agenda/static/templates/agenda/item-sort.html
index e43c29197..80981ffeb 100644
--- a/openslides/agenda/static/templates/agenda/item-sort.html
+++ b/openslides/agenda/static/templates/agenda/item-sort.html
@@ -18,12 +18,14 @@
       <li ng-repeat="item in items" ui-tree-node ng-include="'nodes_renderer.html'">
     </ol>
   </div>
+  <p class="spacer">* <translate>Internal item</translate</p>
 </div>
 
 
 <!-- Nested node template -->
 <script type="text/ng-template" id="nodes_renderer.html">
   <div ui-tree-handle>
+    <span ng-if="item.item.is_hidden">*</span>
     {{ item.item.getTitle() }}
   </div>
   <ol ui-tree-nodes="" ng-model="item.children">
diff --git a/openslides/agenda/static/templates/agenda/slide-item-list.html b/openslides/agenda/static/templates/agenda/slide-item-list.html
index 43c7303eb..ed0d1c635 100644
--- a/openslides/agenda/static/templates/agenda/slide-item-list.html
+++ b/openslides/agenda/static/templates/agenda/slide-item-list.html
@@ -3,8 +3,9 @@
 
   <div class="agendalist">
     <!-- item type: AGENDA_ITEM = 1, HIDDEN_ITEM = 2 -->
-    <p ng-repeat="item in items | filter: {type: 1}" ng-class="{ 'spacer-top': !item.parent_id }">
-      <span ng-repeat="n in [].constructor(item.parentCount) track by $index">&nbsp;&nbsp;</span>
+    <p ng-repeat="item in items | filter: {type: 1}"
+        ng-class="item.parent_id ? 'subitem' : 'mainitem'">
+      <span ng-repeat="n in [].constructor(item.parentCount) track by $index">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
       {{ item.getListViewTitle() }}
       <i ng-if="item.closed" class="fa fa-check"></i>
     </p>
diff --git a/openslides/assignments/static/js/assignments/site.js b/openslides/assignments/static/js/assignments/site.js
index baab1a2a7..82f7e2a31 100644
--- a/openslides/assignments/static/js/assignments/site.js
+++ b/openslides/assignments/static/js/assignments/site.js
@@ -278,6 +278,9 @@ angular.module('OpenSlidesApp.assignments.site', ['OpenSlidesApp.assignments'])
         $scope.phases = phases;
         $scope.alert = {};
 
+        // limit the number of users in ui-select field
+        $scope.limitUsers = 50;
+
         // open edit dialog
         $scope.openDialog = function (assignment) {
             ngDialog.open(AssignmentForm.getDialog(assignment));
diff --git a/openslides/assignments/static/templates/assignments/assignment-detail.html b/openslides/assignments/static/templates/assignments/assignment-detail.html
index fa5eda2dc..747fb35eb 100644
--- a/openslides/assignments/static/templates/assignments/assignment-detail.html
+++ b/openslides/assignments/static/templates/assignments/assignment-detail.html
@@ -95,7 +95,7 @@
         <ui-select-match placeholder="{{ 'Select or search a participant ...' | translate }}">
           {{ $select.selected.get_full_name() }}
         </ui-select-match>
-        <ui-select-choices repeat="user in users | filter: $select.search">
+        <ui-select-choices repeat="user in users | filter: $select.search | limitTo: limitUsers">
           <div ng-bind-html="user.get_full_name() | highlight: $select.search"></div>
         </ui-select-choices>
       </ui-select>
diff --git a/openslides/core/static/css/projector.css b/openslides/core/static/css/projector.css
index 0af63ba20..ef187c35d 100644
--- a/openslides/core/static/css/projector.css
+++ b/openslides/core/static/css/projector.css
@@ -23,12 +23,12 @@ body{
     left: 50px;
     top: 10px;
     height: 50px;
-    margin-right: 35px;
+    margin-right: 25px;
     float: left;
 }
 #eventdata {
     position: relative;
-    left: 30px;
+    left: 50px;
     top: 12px;
     height: 50px;
     overflow: hidden;
@@ -297,12 +297,17 @@ tr.elected td {
 .agendalist p {
     font-size: 140%;
 }
+.agendalist .mainitem {
+    margin-top: 25px;
+}
+.agendalist .subitem {
+    font-size: 100%;
+    margin-bottom: 4px;
+}
 .spacer {
     margin-top: 10px;
 }
-.spacer-top {
-    margin-top: 25px;
-}
+
 
 /*** List of speakers ***/
 .slimlabel.label {
diff --git a/openslides/core/static/js/core/base.js b/openslides/core/static/js/core/base.js
index 5b06c1c80..fa8dceba9 100644
--- a/openslides/core/static/js/core/base.js
+++ b/openslides/core/static/js/core/base.js
@@ -49,7 +49,9 @@ angular.module('OpenSlidesApp.core', [
                 this.messageReceivers.push(receiver);
             },
             reconnect: function () {
-                socket.close();
+                if (socket) {
+                    socket.close();
+                }
             }
         };
         var newConnect = function () {
diff --git a/openslides/core/static/templates/projector.html b/openslides/core/static/templates/projector.html
index 089967f66..367c34e65 100644
--- a/openslides/core/static/templates/projector.html
+++ b/openslides/core/static/templates/projector.html
@@ -19,8 +19,8 @@
 
 
 <div id="header">
-  <img id="logo" src="/static/img/logo-projector.png" alt="OpenSlides" />
-  <div id="eventdata">
+  <img ng-if="config('projector_enable_logo')" id="logo" src="/static/img/logo-projector.png" alt="OpenSlides" />
+  <div ng-if="config('projector_enable_title')" id="eventdata">
     <div class="title">
       {{ config('general_event_name') }}
     </div>
diff --git a/openslides/mediafiles/static/templates/mediafiles/mediafile-form.html b/openslides/mediafiles/static/templates/mediafiles/mediafile-form.html
index 6a2864fb7..4b36aceeb 100644
--- a/openslides/mediafiles/static/templates/mediafiles/mediafile-form.html
+++ b/openslides/mediafiles/static/templates/mediafiles/mediafile-form.html
@@ -28,7 +28,7 @@
       <ui-select-match placeholder="{{ 'Select or search a participant ...' | translate }}" data-allow-clear="true">
         {{ $select.selected.get_full_name() }}
       </ui-select-match>
-      <ui-select-choices repeat="user.id as user in users | filter: $select.search">
+      <ui-select-choices repeat="user.id as user in users | filter: $select.search | limitTo: 50">
         <div ng-bind-html="user.get_full_name() | highlight: $select.search"></div>
       </ui-select-choices>
     </ui-select>
diff --git a/openslides/motions/static/js/motions/site.js b/openslides/motions/static/js/motions/site.js
index 8619587f4..8ff72335b 100644
--- a/openslides/motions/static/js/motions/site.js
+++ b/openslides/motions/static/js/motions/site.js
@@ -207,7 +207,7 @@ angular.module('OpenSlidesApp.motions.site', ['OpenSlidesApp.motions'])
                         label: gettextCatalog.getString('Submitters'),
                         optionsAttr: 'bs-options',
                         options: User.getAll(),
-                        ngOptions: 'option[to.valueProp] as option in to.options | filter: $select.search',
+                        ngOptions: 'option[to.valueProp] as option in to.options | filter: $select.search | limitTo: 50',
                         valueProp: 'id',
                         labelProp: 'full_name',
                         placeholder: gettextCatalog.getString('Select or search a submitter ...')
@@ -318,7 +318,7 @@ angular.module('OpenSlidesApp.motions.site', ['OpenSlidesApp.motions'])
                         label: gettextCatalog.getString('Supporters'),
                         optionsAttr: 'bs-options',
                         options: User.getAll(),
-                        ngOptions: 'option[to.valueProp] as option in to.options | filter: $select.search',
+                        ngOptions: 'option[to.valueProp] as option in to.options | filter: $select.search | limitTo: 50',
                         valueProp: 'id',
                         labelProp: 'full_name',
                         placeholder: gettextCatalog.getString('Select or search a supporter ...')
diff --git a/openslides/users/static/js/users/base.js b/openslides/users/static/js/users/base.js
index c1e08962f..004a80e59 100644
--- a/openslides/users/static/js/users/base.js
+++ b/openslides/users/static/js/users/base.js
@@ -121,7 +121,10 @@ angular.module('OpenSlidesApp.users', [])
                 },
                 getPerms: function() {
                     var allPerms = [];
-                    var allGroups = this.groups.slice(0);
+                    var allGroups = [];
+                    if (this.groups) {
+                        allGroups = this.groups.slice(0);
+                    }
                     // Add registered group
                     allGroups.push(2);
                     _.forEach(allGroups, function(groupId) {
diff --git a/openslides/users/static/js/users/site.js b/openslides/users/static/js/users/site.js
index 83a2450e0..016231e45 100644
--- a/openslides/users/static/js/users/site.js
+++ b/openslides/users/static/js/users/site.js
@@ -912,7 +912,7 @@ angular.module('OpenSlidesApp.users.site', ['OpenSlidesApp.users'])
         // core
         gettext('Can see the projector')
         gettext('Can manage the projector')
-        gettext('Can see the dashboard')
+        gettext('Can see the front page')
         gettext('Can manage tags')
         gettext('Can manage configuration')
         gettext('Can use the chat')
diff --git a/openslides/users/static/templates/users/user-import.html b/openslides/users/static/templates/users/user-import.html
index a45964636..1d785aacf 100644
--- a/openslides/users/static/templates/users/user-import.html
+++ b/openslides/users/static/templates/users/user-import.html
@@ -67,7 +67,7 @@
   <h4 translate>Please note:</h4>
   <ul>
       <li><translate>Required comma or semicolon separated values with these column header names in the first row</translate>:<br>
-          <code>title, first_name, last_name, structure level, groups, comment, is active</code>
+          <code>title, first_name, last_name, structure_level, groups, comment, is_active</code>
       <li><translate>Default groups</translate>:
           <translate>Delegates</translate> <code>3</code>,
           <translate>Staff</translate> <code>4</code>
diff --git a/openslides/users/static/templates/users/user-list.html b/openslides/users/static/templates/users/user-list.html
index 87a5ed028..5b31c64cf 100644
--- a/openslides/users/static/templates/users/user-list.html
+++ b/openslides/users/static/templates/users/user-list.html
@@ -56,7 +56,7 @@
                placeholder="{{ 'Search' | translate}}">
           </div>
         </div>
-        <button class="btn btn-default" ng-click="isFilterOpen = !isFilterOpen"
+        <button os-perms="users.can_see_extra_data" class="btn btn-default" ng-click="isFilterOpen = !isFilterOpen"
             ng-class="isFilterOpen ? 'btn-primary' : 'btn-default'">
           <i class="fa fa-filter"></i>
           <translate>Filter ...</translate>
@@ -64,7 +64,7 @@
       </div>
     </div>
   </div>
-  <div uib-collapse="!isFilterOpen" class="row spacer">
+  <div os-perms="users.can_see_extra_data" uib-collapse="!isFilterOpen" class="row spacer">
     <div class="col-sm-6 text-right"></div>
     <div class="col-sm-6 text-right form-inline">
       <!-- group filter -->
@@ -94,6 +94,14 @@
     {{ users.length }} {{ "participants" | translate }}<span ng-if="(users|filter:{selected:true}).length > 0">,
     {{(users|filter:{selected:true}).length}} {{ "selected" | translate }}</span>
   </div>
+
+  <!-- set filtered users (for user with/without can_see_extra_data permissions-->
+  <div os-perms="users.can_see_extra_data"
+      ng-repeat="user in usersFiltered = (users | filter: filter.search | filter: {groups: groupFilter} |
+          filter: {is_present: filterPresent} | orderBy: sortColumn:reverse)"></div>
+  <div os-perms="!users.can_see_extra_data"
+      ng-repeat="user in usersFiltered = (users | filter: filter.search | orderBy: sortColumn:reverse)"></div>
+
   <table class="table table-striped table-bordered table-hover">
     <thead>
       <tr>
@@ -124,9 +132,7 @@
               ng-class="reverse ? 'fa-sort-desc' : 'fa-sort-asc'">
           </i>
     <tbody>
-      <tr ng-repeat="user in usersFiltered = (users | filter: filter.search | filter: {groups: groupFilter} |
-          filter: {is_present: filterPresent} | orderBy: sortColumn:reverse) | limitTo : itemsPerPage : limitBegin"
-          class="animate-item"
+      <tr ng-repeat="user in usersFiltered | limitTo : itemsPerPage : limitBegin" class="animate-item"
           ng-class="{ 'activeline': user.isProjected(), 'selected': user.selected  }">
         <!-- projector column -->
         <td ng-show="!isDeleteMode" os-perms="core.can_manage_projector">
@@ -163,5 +169,8 @@
           </span>
           <input os-perms="users.can_manage" type="checkbox" ng-model="user.is_present" ng-click="save(user)">
   </table>
-  <uib-pagination total-items="usersFiltered.length" items-per-page="itemsPerPage" ng-model="currentPage" ng-change="pageChanged()"></uib-pagination>
+  <uib-pagination total-items="usersFiltered.length" items-per-page="itemsPerPage" ng-model="currentPage"
+      ng-change="pageChanged()"
+      class="pagination-sm" direction-links="false" boundary-links="true" first-text="&laquo;" last-text="&raquo;">
+  </uib-pagination>
 </div>
diff --git a/openslides/users/views.py b/openslides/users/views.py
index 040cffec4..111f63390 100644
--- a/openslides/users/views.py
+++ b/openslides/users/views.py
@@ -89,10 +89,16 @@ class UserViewSet(ModelViewSet):
         """
         if not self.request.user.has_perm('users.can_manage'):
             if isinstance(response.data, dict):
-                del response.data['default_password']
+                try:
+                    del response.data['default_password']
+                except KeyError:
+                    pass
             elif isinstance(response.data, list):
                 for user in response.data:
-                    del user['default_password']
+                    try:
+                        del user['default_password']
+                    except KeyError:
+                        pass
 
     def update(self, request, *args, **kwargs):
         """