Heya thanks for taking the time to do this script I just have one question:

I already use AHK and made my own script - mine is pretty basic - but for each hotkey (that I would use for a spell) I would have it press = also. As my macro on = is /assist.

Code:
#IfWinActive, World of Warcraft 
~3:: 
ControlSend,,{3 down}{3 up}, ahk_id %idMain% 
ControlSend,,{= down}{= up}, ahk_id %idClone% 
ControlSend,,{3 down}{3 up}, ahk_id %idClone% 
return
So if I wanted your script to do something similar (press = so it would assist) would this work? : (I'm at work so can't test it at the mo)

Code:
~3::
KeyWait 3, D
WinGet, Active_Window, ID, A
IfWinActive, World of Warcraft
{
	If(%killbroadcast% = 0)
	{
		Loop, %wowid%
		{
			target_window := wowid%A_index%
			If (Active_Window <> target_window)
			{
				ControlSend,, 3, ahk_id %target_window%
                            	ControlSend,, =, ahk_id %target_window%  
			}
		}
	}
}
Return
..or does it need something else? :/

Thanks in advance.