Switching Weapon Modes

Hello anyone who reads this; I'm still learning how to use MCreator, and one thing I want to do for a weapon is have it switch between attacks on right click mode. Specifically if I were to push some button, it would switch the weapon to it's long range attack, then switch back to it's short ranged attack. I was going to figure out how to do it with another button like ALT, but I again don't know how to do that. So if anyone would be willing to help that would be greatly appreciated!