So I took part of a script from another fellow and I decided to edit it.
I turned it into this:

;180 Turnaround
F3:: Hotkey, *~$XButton1, Toggle
*~$XButton1::
DllCall("mouse_event", "UInt", 0x01, "UInt", 223, "UInt", 0)
sleep 1
DllCall("mouse_event", "UInt", 0x01, "UInt", 432, "UInt", 0)
sleep 1
DllCall("mouse_event", "UInt", 0x01, "UInt", 432, "UInt", 0)
sleep 1
DllCall("mouse_event", "UInt", 0x01, "UInt", 432, "UInt", 0)
sleep 1
DllCall("mouse_event", "UInt", 0x01, "UInt", 432, "UInt", 0)
sleep 1
DllCall("mouse_event", "UInt", 0x01, "UInt", 432, "UInt", 0)
sleep 1
DllCall("mouse_event", "UInt", 0x01, "UInt", 432, "UInt", 0)
sleep 1
DllCall("mouse_event", "UInt", 0x01, "UInt", 432, "UInt", 0)
sleep 200
And it no longer works, how do I make it so that I can use "mouse button 4" instead of "t". I can't figure out what I'm suppose to do, tells me the hotkey is non-existant...