Alternative key for attack: off hand rifle butting / melee swipe (resolved)

I'm looking to do a melee attack with an alternative button press, similar to games with a quick rifle butt, melee swipe or the like. I already have the melee setup and am having some difficulty figuring out the command to call the attack (i.e: in default.bind.cs: moveMap.bind(keyboard, "the button", the command that would do the attack);).

I was working on modifying this TGE resource for offhand grenade throwing but am having difficulty translating it over to a weapon fire.

Any help would be appreciated and (as always) credited in what I'm working on.

EDIT: I've successfully implemented this via the resources posted in this thread.