How to cancel some function key that I never use like Caps+a or Caps +b,something just like this

[nOvlc3]

I am borthered by this default function.I like to define my own key to use

[drunkenQCat]

Here's a reference in the repo. To implement it, make a new dir in the capslock+ dir named "userAHK", and follow the reference to write appropriate code in the .ahk file, such as the code mentioned by @willhome360 :

caps_a=keyFunc_doNothing