Avoid using command for keyboard shortcuts I work with a disabled person who uses their communication-aid to control their iMac through keyboard and mouse commands.

I'm setting up keyboard shortcuts to launch applications directly using services in Automator, however the communication-aid doesn't have the ability to send the command key.

How can I get OSX to recognise other key combinations? (e.g. ctrl-alt-f to launch FireFox)
This article explains how to customize keyboard shortcuts.