When 3.1 drops do the following:

  • Bind a key to Interact with Target.
  • Enable "Click to Move" in the mouse interface options.
Now you target the mob and smash the key for "Interact with Target" and if they are hostile, you will run to them and attack them (thats called Interacting ). If you set this up so you are able to spam it with your dps keys you will effectively create a sticky combat that handles all melee needs.