[PATCH setup] Add tooltip for Ctrl+I/R/U accelerator keys

[Christian Franke]

Jon Turney wrote:
> On 22/11/2022 16:00, Christian Franke wrote:
>> This is a first try to make these keys more obvious as requested on 
>> the Cygwin ML.
>>
>> A more complex approach would be to mention only the keys which 
>> actually would change the current package state.
>
> Thanks for this patch.
>
> So, I appreciate what this is trying to do, but I have great 
> difficultly convincing myself that this is the right approach.
>

I'm also not sure. An alternative would possibly be some help below the 
listbox, centered in the same line as "Hide obsolete packages".


> We don't need to resort to a tooltip for any other shortcut, because 
> there is an established visual design language to indicate those.  I 
> guess we just need to find what's consistent with pre-existing ways of 
> indicating this kind of behaviour in other applications.
>

Cygwin setup is somewhat uncommon as there is no default menu bar with 
drop-down menus. Accelerator keys are traditionally mentioned there.