so i just found out that you can use more than just "delete", "end", etc.... on the joypad. ex: you can use "A" or "spacebar" on the joypad too.
the original 8 quick slots are
"insert home page up
delete end pagedown"
but, you can change those. let's say you change insert into hotkey spacebar. now your quick slot will look like
space home pageup
delete end pagedown
when you go to joypad settings, whatever button you have for insert will press space instead