Why not leave it the way it is? I like the manual input since you can control the flow of battle and manage your hate. In XI as a ranger I was sometimes asked to slow down in pts and I could easily accommodate this request if I wanted to without disengaging. In Aion Rangers had an autoattack and it consumed arrows but there was only one type of arrow, not different types like in this game and XI. Also the autoattack was pretty weak and it was better to just rotate abilities.

Archers are already very strong in this game and they are this game's ranged attackers. They SHOULD be at a disadvantage at close range, that's the trade off for being an excellent ranged attacker.