Collections support for duplicate finder

I don't know if this has been requested before but what I'd really like to see would be the ability to run the duplicate finder on a collection so that I can point it to a set of folders from all over the place (like my comicbook collection which is in several different folders :p) and then be able to find the duplicates in there. Possible? I would hope so? Doable? Only the devs would know that, won't they? :stuck_out_tongue:

Hey there... it get's MY vote. I think this is not only a logical extension to duplicate file finder capability on it's own sake... but it also addresses the need others have expressed several times in various topics to be able to select multiple folders for dupe search the same way multiple "drives" are currently allowed to be selected. It would also be nice to be able to select multiple file collections as well with this idea... nice request.