Does jamba already do this?

[Tehmuffinman]

There is no "macro" for stop following. You can turn off Jamba's strobe following (the part of Jamba that will keep making your toons re-follow if follow is broken) but to fully STOP following an action event is needed (movement key, turn left/right key, etc).

I personally have a key that sends the up arrow to all my slaves to nudge them to break follow.

[HPAVC]

You also cannot glitch follow by making it abort by following something that: doesn't exist, is too far away, is followable, etc.