ID:1320012
 
(See the best response by Rushnut.)
I've seen this done multiple times in games, where if you hold CTRL and then press an arrow key it will simply turn you in that direction instead of moving you, how is this done? I've looked over some resources and still cant find a concrete answer.

Best response
Simply make a macro in your skin (Or hardcode it) that when using the CTRL key and arrow keys (Or WASD, I personally prefer WASD), set the player's mob's dir to EAST/WEST/etc.
Or you could use Params