diff --git a/plugins/kolab_files/skins/elastic/ui.js b/plugins/kolab_files/skins/elastic/ui.js
index fbd31653..fead9deb 100644
--- a/plugins/kolab_files/skins/elastic/ui.js
+++ b/plugins/kolab_files/skins/elastic/ui.js
@@ -1,147 +1,147 @@
 function kolab_files_enable_command(p)
 {
     if (p.command == 'files-save') {
         var toolbar = $('#toolbar-menu');
         $('a.button.edit', toolbar).parent().hide();
         $('a.button.save', toolbar).show().parent().show();
 
         if (window.editor_edit_button)
             window.editor_edit_button.addClass('hidden');
         if (window.editor_save_button)
             window.editor_save_button.removeClass('hidden');
     }
     else if (p.command == 'files-edit' && p.status) {
         if (window.editor_edit_button)
             window.editor_edit_button.removeClass('hidden');
     }
 };
 
 function kolab_files_listoptions(type)
 {
     var content = $('#' + type + 'listoptions'),
         width = content.width() + 25,
-        dialog = content.clone(),
+        dialog = content.clone(true),
         title = rcmail.gettext('kolab_files.arialabel' + (type == 'sessions' ? 'sessions' : '') + 'listoptions'),
         close_func = function() { rcmail[type + 'list'].focus(); },
         save_func = function(e) {
             if (rcube_event.is_keyboard(e.originalEvent)) {
                 $('#' + type + 'listmenu-link').focus();
             }
 
             var col = $('select[name="sort_col"]', dialog).val(),
                 ord = $('select[name="sort_ord"]', dialog).val();
 
             kolab_files_set_list_options([], col, ord, type);
             close_func();
             return true;
         };
 
     // set form values
     $('select[name="sort_col"]', dialog).val(rcmail.env[type + '_sort_col'] || 'name');
     $('select[name="sort_ord"]', dialog).val(rcmail.env[type + '_sort_order'] == 'DESC' ? 'DESC' : 'ASC');
 
     dialog = rcmail.simple_dialog(dialog, title, save_func, {
         cancel_func: close_func,
         closeOnEscape: true,
         minWidth: 400,
         width: width
     });
 };
 
 function kolab_files_members_list(link)
 {
     var dialog = $('<div id="members-dialog" class="session-members"><ul></ul></div>'),
         title = $(link).text(),
         add_button = $('#collaborators a.button.add'),
         save_func = function(e) {
             add_button.click();
             return true;
         };
 
     if (add_button.is('.disabled')) {
         save_func = null;
     }
 
     $('#members img').each(function() {
         var cloned = $(this).clone();
         $('<li>').append(cloned).append($('<span>').text(this.title))
             .appendTo(dialog.find('ul'));
     });
 
     dialog = rcmail.simple_dialog(dialog, title, save_func, {
         closeOnEscape: true,
         width: 400,
         button: 'kolab_files.addparticipant',
         button_class: 'participant add',
         cancel_button: 'close'
     });
 };
 
 
 if (rcmail.env.action == 'open') {
     rcmail.addEventListener('enable-command', kolab_files_enable_command);
 
     // center and scale the image in preview frame
     if (rcmail.env.mimetype.startsWith('image/')) {
         $('#fileframe').on('load', function() {
             var css = 'img { max-width:100%; max-height:100%; } ' // scale
                 + 'body { display:flex; align-items:center; justify-content:center; height:100%; margin:0; }'; // align
 
             $(this).contents().find('head').append('<style type="text/css">'+ css + '</style>');
         });
     }
 
     // Elastic mobile preview uses an iframe in a dialog
     if (rcmail.is_framed()) {
         var edit_button = $('#filetoolbar a.button.edit'),
             save_button = $('#filetoolbar a.button.save');
 
         parent.$('.ui-dialog:visible .ui-dialog-buttonpane .ui-dialog-buttonset').prepend(
             window.editor_save_button = $('<button>')
                 .addClass('save btn btn-secondary' + (save_button.is('.disabled') ? ' hidden' : ''))
                 .text(save_button.text())
                 .on('click', function() { save_button.click(); })
         );
 
         parent.$('.ui-dialog:visible .ui-dialog-buttonpane .ui-dialog-buttonset').prepend(
             window.editor_edit_button = $('<button>')
                 .addClass('edit btn btn-secondary' + (edit_button.is('.disabled') ? ' hidden' : ''))
                 .text(edit_button.text())
                 .on('click', function() { edit_button.click(); })
         );
     }
 }
 else if (rcmail.env.action == 'edit') {
     rcmail.gui_object('exportmenu', 'export-menu');
 }
 else {
     rcmail.addEventListener('files-folder-select', function(p) {
         var is_sess = p.folder == 'folder-collection-sessions';
         $('#fileslistmenu-link, #layout > .content > .pagenav, #layout > .content .searchbar')[is_sess ? 'hide' : 'show']();
         $('#sessionslistmenu-link')[is_sess ? 'removeClass' : 'addClass']('hidden');
 
         // set list header title for mobile
         // $('#layout > .content > .header > .header-title').text($('#files-folder-list li.selected a.name:first').text());
     });
 }
 
 $(document).ready(function() {
     if (rcmail.env.action == 'open') {
         $('#toolbar-menu a.button.save').parent().hide();
     }
     else if (rcmail.env.action == 'edit') {
         if (rcmail.is_framed()) {
             parent.$('.ui-dialog:visible .ui-dialog-buttonpane').addClass('hidden');
         }
     }
 
     if ($('#dragfilemenu').length) {
         rcmail.gui_object('file_dragmenu', 'dragfilemenu');
     }
 
     if ($('#filesearchmenu').length) {
         rcmail.gui_object('file_searchmenu', 'filesearchmenu');
     }
 });
 
 kolab_files_upload_input('#filesuploadform');