It appears you can't cheat with a Mac
There's nothing in the Applications folder except the Readme and the Game .ini and uninstall files, and the Documents folder doesn't have anything resembling Command.ini There's an Options.ini file, which I could open and read in Notepad, but that mainly seems to relate to items from the Control Panel and Lessons.
I guess I'll just have to play a vanilla game, with the occasional 'kaching' if really needed.