It was the case that when I went to More, I saw Groups (see pic headed "first")
I was trying to hide groups from public view.. I didn't and don't see Groups in "more....manage sections". (see pic headed "second")
A guy I spoke to suggested to click Groups and click on the pencil icon and to click "hide section". I did that and now the section is hidden from me, and not showing under More, (see pic headed "third") and still not showing in 'manage sections'.
How can I at least return "Groups" to the More menu?