How do I connect a grasshopper button with my actual, physical, keyboard?

Does anybody know of a way to map grasshopper buttons to buttons on your actual keyboard? I’m working on a project that involves parametrically generating documents, and the expression works but it involves hitting four buttons in sequence over and over and over again and using my mouse to do that is quite tedious. It would be awesome if I could just hit the one button, two button, etc on my actual keyboard. Does anybody know how to do that?