Thanks for the kind words, I'm glad we could help out.
Thanks too for the suggestions. I've added the lights idea to out libraries wishlist. As for the helper object, unfortunately RailClone cannot use non-geometric objects (such as lights), because it's a procedural geometric object. In the past we have tried some tricks to sidestep this limitation (specifically to create lights), but so far we are not entirely satisfied with the results. That said we haven't discarded this idea for a future version, if we find a feasible way to implement it.