Is there a way to make my ‘2’ key function like shift?
I assume you are meaning to ask if you can use “2” as a modifier key and the answer is no, not normally. However there are programs that can remap your keys. So you could technically remap you “2” and “Shift” so that when you press “2” your pc thinks your actually pressing “Shift”.
Also there are other keys you can use as modifier such as Shift, Function, Control, Alt, Command, and Option