That title was admittedly confusing…but I don’t know a better way of putting it. I want to create an effect like is on http://www.lennon.net/familytree/familytree.html The small map in the right hand corner controls the large map in the middle. I have a version that is a little bit different, but essentially the same. It has a clip in the middle (mine is a drag and drop instead of having scrolling buttons), and it has a zoom in and out function. The zoom is where I get completely lost because I don’t know how to relate the two objects with the correct equation especially when the size will be changable. If anyone can point me to a tutorial or another thread that discusses any of this, that would be fantastic…I don’t expect you to write all of the script for me, but just point me in the right direction.