^Title says it all.

Tried doing what the ISB wiki said and created new mapped key under 'mapped keys'. Made 1 step for each of my 5 toons and designated "4" as my hotkey and also ticked the round-robin box. Exported to IS and did a test run - no luck.

Would like all my toons to cast CC under one hotkey, but one after the other for each button press. What's the correct way on to set this up?