Team Fortress 2 Logitech G500 Mouse Bindings

[poops]

(Sorry in advanced if I posted this in the wrong place or something, still new to forums and stuff) Hi there, so for a while I've been trying to figure out how to set up certain actions on my Logitech G500 mouse (example: Degreaser+Axetinguisher: Attack, swithch weapons, and attack) I was wondering if someone could help me out, I've tried scripts, but im not able to do anything else, just that one spacific script. Any help would be appreciated, thanks