bug#15748: 24.3.50; `customize-group': Provide a way to hide/show all values

[Howard Melman]

> On May 10, 2022, at 11:48 AM, Lars Ingebrigtsen <larsi@gnus.org> wrote:
> 
> Howard Melman <hmelman@gmail.com> writes:
> 
>> When exploring new packages I often use customize-group to see what
>> settings I can change but it defaults to not showing the values and also 
>> showing only the first line of each docstring requiring me to click on 
>> "More" for every option.  Having a command to show/hide all values 
>> would be very convenient in this case.
> 
> I've now added this to Emacs 29 (as custom-toggle-hide-all-variables/`H/).

That's great, thanks!

Howard