I have another question...

I'm trying to give one of my heroes the ability to create units (6 zerglings) at his location, but I'm not sure how to do that.

-Player 1-
-Conditions-
Player 1 commands at least 1 terran marine
Player 1 brings 1 Protoss Zealot to p1ability
-Actions-
Create 6 Zerg Zerglings for Player 1 at Player 1's Terran Marine

Or something to that effect.

You need to use the action Center Location or Move Location to move a location to your Marine, and then move the units to that location.

Thanks a lot!

Solved my problem.