Hey, I am relatively new to Foundry. In the module we use weapons can have certain properties that change the defense roll (like -2 to defense). Some weapons however give -3 by the rules but that is not implemented in the module. What is the goto way to find the existing -2 macro and add a -3 macro one can attach to weapons?

I am a computer scientist so coding is not an issue; just foundry’s structure and specifics.