Adding more key binds to settings

I would like the addition of the key binds “weapon 1 & weapon 2” as I like to use my scroll wheel to change weapon but when i swap a lot of the time ill just swap like 3 times because 1 single scroll is a weapon change, ive been getting use to pressing 2 to change weapon at the moment but id like this added.
I did look at the “use equipment” bind in game but I’m unsure what that does. 1 and 2 didn’t seem to do anything when I tried it.
thanks

Wouldn’t the “use equipment” bind key be for the equipment’s you pick up (grapple, thrust, drop wall etc.)?

well q is bound to use that equipment anyways, i think its called special equipment or something