I've noticed that once
$ emacs -nwis called, the usual emacs menu appears on the upper part of the terminal.
QUESTION
How does one use that menu?
Emacs gives a handy intro which mentions this, if you start it without loading a file. If you always give a filename on the command-line, you won't see it. Here's how to use it:
Activate menubar F10 or ESC
or M-