User blog comment:Dopp/A Tour of Special Pages/@comment-3155630-20110330183627/@comment-1656630-20110330225441

Just checked it out, and it's unfortunately not an easy task to add a new toolbar item. Statistics isn't included on the list -- sorry. But Most Linked Files is. It's just called "most linked-to photos." http://smurfs.wikia.com/wiki/Help:Toolbar/List_of_available_tools