Where's that option? I created a project, and the closest thing I could find was in Versions. I clicked on the "(?) Public" thing, and it said that I couldn't c

Where's that option? I created a project, and the closest thing I could find was in Versions. I clicked on the "(?) Public" thing, and it said that I couldn't change it or something. I don't want it to be public, but it never changed to a yes or no option, just stayed the same orange with a question mark.