Re: Undo mode

[Eli Zaretskii]

> Date: Fri, 21 Jan 2022 10:26:54 +0000
> From: Gregory Heytings <gregory@heytings.org>
> Cc: emacs-devel@gnu.org, Juri Linkov <juri@linkov.net>
> 
> There's no point in telling the user "how to turn it off", as I said 
> earlier the "Enable Frame Undeletion" menu item was there as a hint to 
> tell users that it's a feature that needs to be turned on in their init 
> files.

It is unusual to have a setting that can be turned on via the menu,
but not turned off via the same menu.  The mode can be turned off via
M-x, so what would be our reason not to allow the same from the menu
bar?