HELP! How do I stack actors?

Hi,
I'm new to Gamesalad and programming. I am attempting to drop actors on top of each other so they stack and stay in place. I also want to determine the location of each actor- think stacking kids blocks; but once in place I don't want them to move.
So far I have-
I grab an actor.
Actor passes over trigger and now drops.
I set up "move to; but the position seems to shift based on height/velocity, etc.
Any help or advice would be appreciated.
I'm new to Gamesalad and programming. I am attempting to drop actors on top of each other so they stack and stay in place. I also want to determine the location of each actor- think stacking kids blocks; but once in place I don't want them to move.
So far I have-
I grab an actor.
Actor passes over trigger and now drops.
I set up "move to; but the position seems to shift based on height/velocity, etc.
Any help or advice would be appreciated.
