Anyone have an idea on how to make these targets move?
I'm guessing you want a target sliding left or right, as a moving target eh?
A simple while loop where you setpos the target left or right a small amount with each iteration should do the trick. The following line should shift the target left or right depending on whether the _moveIncrement is negative or positive.
myTarget setpos (myTarget modelToWorld [_moveIncrement, 0, 0]);