[Gladsomebeast]

Would putting invisible objects in the Max scene in place of the point helpers work for you? What characteristics do "point helpers" have that scene objects do not?

The invisible objects could have a naming convention allowing you to identify if they are BIG_TREES or SMALL_TREES and iterate through them with getChild() calls. You could name the objects big_tree1, big_tree2, big_tree3 and small_tree1, small_tree2, etc.