I found something in a other section of what i need help with to..

Get key-broadcasting software (KeyClone, AutoHotKey) to send keypresses to every instance of WoW. (insert links to KC/AHK topics here)
4. Setup macros to make things easier such as /follow and /assist etc.
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Keclone link is already given in post here, but I really need help to get started. Cause this is something I wanne have in goal, I wanne master this!