Thank you. This is very well-done, and impressively flexible.
Still, I would like to put in a request for Rail Clone 3.0. While your solution is excellent, I would like to be able to create a simple array (very similar to the native max tool) but with parametric control that doesn't disappear after you create the array (very unlike max). RailClone can do so much more than this of course, but I think a simple function like this would be very helpful.