Press (ctrl) + (~) and that should open up the window for you to put in the cheat code. I have an Apple computer, so it could be (command), (ctrl), or (option) and hold the (~) key down at the same time. Not all of them at once, but only one of the first three keys are right and hold it down with the (~) key to open an alternate screen.
Then you type in 'helpusobi 1' then your cheat codes.
You could choose your saber with 'Set saber single_1 single_1' or 'Set saber dual_1' Or type in different numbers to get different hilts. I don't know how to adjust colors.