The only way to hide post/photo on a page – is to delete it. There is no option “only me” or “some friends” etc.. But I keep “private” so many photos.. That’s why I prefer account for now.
Why group? Sometimes I like a bit of personable socialising. For example, I might ask group members for their opinion on my dress, or I might study men, asking questions, asking advise, interrogate them etc.. 😉
Good night! X