Ronstuff's link on this is at RDNA forums. I'm interested in this as I'm startimg to play with water effects again. The lights are another issue as far as scaling up to 1000%. As you mentioned, there is a Z axis problem on spots/shadowcams and cameras. We parented everything to an invisible primitive and used that to scale the scene. I've been manually redoing the spots and now just save a monster lightset to the library. This would be very useful.