Searched “visible”, “invisible”, and “visibility” and couldn’t find this suggested before.
Right now only some items have a visibility slider. The only one I’m aware of is “Glass Wall”, but there might be more. The ability to make anything invisible could be used in a variety of ways, such as making invisible teleporters (Especially useful for condo games) or making anything a chair, by putting an invisible chair on top of whatever you wanted people to be able to sit on. I’m sure people could come up with a bunch of more interesting ways to use it, those are just off the top of my head.
Alternatively it could be a hotbar tool like the Duplicator instead of an edit slider, but I think an edit slider would be better.