-----Original Message-----
From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Ergus <spacibba@aol.com>
Cc: emacs-devel@gnu.org <emacs-devel@gnu.org>
Sent: Mon, Jun 8, 2020 9:27 pm
Subject: Re: If undo-only why not a redo-only?
> The idea is to navigate only in one direction until the initial opposite
> action. or the other with the *-only commands, without the danger of
> switching unintentionally from undo to redo or vice-versa. If there is not
> more undo or redo or the next action is the opposite (redo/undo), just stop
> and do nothing (print a message maybe)
Yes, that's what `undo-only` and `undo-redo` attempt to provide, IIUC.
Have you bumped into problems with them?
Stefan