I've never tried this myself so I don't know if it would work, but I've always thought a good way to position objects to a number of different preset positions would be to record keyframes in an animation controller that isn't on the scene director. Then in the script you could just position the animation controller to a specific keyframe and all the objects should move to the recorded positions. So if you had a fullscreen and wanted to sometimes have 3 lines or text and sometimes 4 or 5 etc, you could pre-record all the positions of the various combinations as keyframes and recall them through the script.
#XPression