I have an additional question (feature request)
Is it possible to set the object visibility via a slider directly in the editor?
Setting it via an actionpart is sometimes a bit annoying.
Also it would be cool to set the blending method to the object (normal, multiply, add, etc). By that "real lightmaps" would look more fantastic and could be more dynamic.
I think parameters like that should be standard really. It would certainly be nice to specify the default opacity, scale, rotation values & position of scene objects / animations without having to resort to dragging, action parts or Lua script.