I'll look for a more thorough tutorial that delves into how to navigate the echo panes (I think that's the term for the buffer of commands that pops up when you have only partially entered a command).
@bthall Emacs is self documented. C-h m is your friend to find all active key bindings. If you have whichkey enabled, C-h on its own should display the kind of help you can trigger. Most useful ones: major mode, keybinding, function, variable, info
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