I don't know much of anything about HKN, but you can cut the macro down to this:

Code:
/follow [mod:rctrl,mod:rshift,nomod:ralt]CharacterOne;[mod:rctrl,mod:ralt,nomod:rshift]CharacterTwo;[mod:ralt,mod:rshift,nomod:rctrl]CharacterThree;[mod:rctrl,mod:ralt,mod:rshift]CharacterFour