I see there is an option to remove a picture from "All Categories". However that is inadequate. What if I need to only remove the picture from one or some, but not all categories?
Ok I figured out to remove a picture from other than all categories. Rather than having to enter and after exit "Delete Tool" mode, would I think is quite cumbersome, I would have preferred something like "Shift-Delete" or "Ctrl-Delete" so I guess this suggestion is now a feature request.