Heh, didn't think to tap on the "check" icon , tried tap on the name, tried longpress (Android user here

), tried going to "Others">Advanced and look for delete/forget/remove. Thought it was strange that it doesn't have that option.
Ok, that's done then. Removed both SSIDs (home and office across the street), so PW1 is safe from the old man

and update to fw 5.6.x.
Thank you.