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it would also be cool if in "manage tag parents" there was a tab to show tags by recently added similar to when you manage tags on a specific image.  I'll typically add a bunch of new tags for images as I import them, then go to set up the parents for them a bit later.  Also, is there a way to make the recently added tags list longer?  by default it doesn't seem to cache a very big number of the recent tags before it begins to dequeue them to make room for new recently used tags...