The macro will repeteadly move you (barely) every 5 minutes so you can dodge the afk timer. It might seem like you don't move at all but in reality it makes you start moving in a direction and then back to the initial spot very fast so you dont start running in a wall endlessly (which might look suspicious and get you reported by other players).
Download the program (Download) and go to the macro editor
press the button «Open file»
and select the downloaded file
assign a macro to a key and run the program