 
     $(document).on 'mousemove.item', @dragItem
     $(document).one 'mouseup.item', @endDragItem
+
+    @mainContent.addClass('u-unclickable')
     # TODO: fire @cancelDrag on ESC
 
   dragItem: (event) =>

    '.js-batch-assign-group-name':  'batchAssignGroupName'
    '.js-batch-assign-group-inner': 'batchAssignGroupInner'
    '.js-batch-macro':              'batchMacro'

  events:
    'mousedown .item': 'startDragItem'

    group = App.Group.find(groupId)
    users = []

    for user_id in group.user_ids
      if App.User.exists(user_id)
        users.push App.User.find(user_id)

    @batchAssignGroupName.text group.displayName()
    @batchAssignGroupInner.html $(App.view('ticket_overview/batch_overlay_user_group')(
