QUESTION ABOUT KEY-BINDINGS

I recently bought kalista. And ive been using the attack move click to jump while i auto attack. it is very nice for kiting. If i do that, and hold down the target champions only button i still auto attack minions if they are closer to me. I have tried re-binding the keys and stuff.. but nothing works

how can i make the "attack move click" work only on the closest enemy champion?!