Wed Jan 20, 2016 11:54 am by bob
Well, if you only want broadcasting to apply on the one main, then you would need to update the Always On -> Activate Repeat mapped key, and set the Target to "Window:Current" rather than "Window:All w/ Current". For an Action RPG (D3) config, this will normally be the first action in the second step. This may mean that when you start up though you get slightly different behaviour as Repeater would be on for all windows, until you switch it via the mapped key.
Although, normally, it is probably easier to set hotkeys for the "Hold To Control" mapped keys in the Non-Combat key map. These allow you to control a specific toon only from any window while you hold the hotkey down.