link key from keyboard with button to run the code instead of click on the button

Hi guys
I have project contains many buttons inside the sheet whether active X or not and userform contains commandbuttons .
so I want to use the key from keyboard to running the code instead of click the button .
example :
button 1 (inside sheet) = F1 from keyboard
commandbutton1 active X (inside sheet)=C (letter from keyboard)
commandbutton1 (onuserform)= F3 from Keyboard and so on for each button .
also posted here
link key from keyboard with button to run the code instead of click on the button
thanks in advanced.