Assign a key on the keyboard at the click of the mouse

[DorianJ78]

Hello,
I would like to know if it is possible to assign a key, for example "," to the left click of the mouse. I draw with a graphics tablet but I am obliged to click with my pad to design what is unpleasant.
Hoping to have been clear in my explanations.
Thank you

DorianJ78

[tmyusuf74]

left click button press and chosen undo move. I am hopefully its working

[Trevor.Dennis]

[DorianJ78]

Not really ^^ but thanks for your help

I'm just looking for a way to more easily design and I wonder if Photoshop can provide a setting that would allow me to use a key rather than my mouse to click.