I think there's a problem with AHK known as auto-hotkey which is tampering with the Old School RuneScape mechanics and considered a bot and is sue-able over a copyright Jagex has.
The new F keys should be the new 1, 2, 3 ,4, 5 on the number keys because it would eliminate EoC and RuneScape would keep the charm of being an old fashioned game that keeps it's fundamentals and F Keys causes a strain to the player making it more viable and less straining and stressful to change them to the number keys.