Is it possible to map functions keys to push buttons ?

Using Arduino Project Guidance
#1

Hello,

I am doing a small keyboard using LEONARDO with push buttons to map original key strokes, I have tried many time to map functions keys and absolutely failed, is it even possible to write an ASCII for functions key (f1:f12) in my code ??

#2

try the documentation here - Arduino - KeyboardModifiers
and here - Keyboard.press() - Arduino Reference

#3