I don't believe that is possible, to make aunit somply "face the cursor". I know it cannot be achieved through GUI trigger, and i strogly believe that it cannot be done through JASS either.
this might be possible using trackables, i dont know to much about them though. you might want to try using the search and seeing if someone posted a tutorial here.
I'm on a page about incorrect corrections, and spent the better part of like two hours trying to get someone to understand that -5^2 = -25, not 25, and then that post had comments get reposted because that group is self sustaining, and that person was in turn trying to explain what I just explained to them. And I'm taking that as a victory
I will be AFK for a couple of days you guys hold down the fort while I am gone. I will be checking in on my phone but that will severly limit me. Be back saturday!