Inserting a footnote in a Pages document
I want to insert a footnote in a pages document. I know you have to click "footnotes" at the top of the sidebar, and that the word "footnotes" isn't normally visible there, but what do you do to make it appear? I found a conversation that said you first have to have a footnote. But you can't have a footnote if you have been unable to enter one because of the absence of the "footnotes" button in the sidebar. Seems like a catch 22 situation to me. Can anyone help please? I'm sure there's a simple way through this but I can't see it.
MacBook Pro 13″, macOS 11.2