How do you get into cheats mode on Star Wars Jedi knight 2 Jedi outcast

Hold the |SHIFT| button then press the |~|, a window should open, type in helpusobi 1 then type the cheat. Go to this website for a wide variety of cheats to put in: http://www.gamefaqs.com/pc/516547-star-wars-jedi-knight-ii-jedi-outcast/cheats