In response to blip #70749
@Litrojia: To remove a picture from a set, first it has to be a set you own or are a moderator of, assuming that's true, when viewing the set's post, you go to mode and select remove from set.
Responses
In response to blip #70750
@zenitix: I'm trying this with an image in a private set of mine, but I can't find "mode" anywhere.