You must turn on the debug before cheating. To turn on the cheats for Macintosh, there are some ways. You need windows computer to turn on the cheats. You also need USB disk to turn on the cheats. Insert USB disk on Macintosh computer, move Game.ini from Harry Potter II folder to USB disk, Eject USB disk, Insert it in Windows computer, open USB disk and open Game.ini, then at the bottom of Game.ini, you will see a sentence bdebugmode=False. Highlight False and change it to True. Save and quit, Eject USB disk, then insert it to Macintosh computer, then move Game.ini back to Harry Potter II folder then the cheats will be on.