Deleting Spritesheets

[Funnyfunfunfun]

Yea, but I want to upload a revision of all the backgrounds from the Nexus locations, meaning there would be a zip of all of them, but then there would be some by itself too, due to me uploading separate ones and not being able to delete them once I've uploaded the zip, and I think that would look a little disorganized. Is there another way or no?