a move and Shift move

when i played kalista for the first time i used shift move a lot but when retreating id click behind e where i wanted to go and id walk right to the enemy. i feelthis is a bug although i know it isnt but am asking you to update this and make a cone infront of you your champ willl go off course to attack and other than that will only attack if enemies are in range. so kinda like packman is your champs range they will go off course to attack targets in the cone of his mouth other than that no they will not go backwards for example when you tell them to retreat (now they would advance to a 1v5) rito plz add this in some patch so its easier to kite as everyone and less adc's die