Bulk/Selected Delete ?

Would it be possible to bulk delete a specific category of our collection, or select an array of specific cards to delete? For instance, I'd like to delete what I've added to my collection in the Pokeman category. I uploaded these on the app, but didn't do so in a particular order, and I have 1000s more to do, but risk a substantial amount of dupes. I realize this may be an isolated "issue", since it was my own idiocy that led me to this point. I appreciate any insight you can provide!