The prefered way with proxy trees?

V-Ray for Maya V-Ray for Maya :: Issues
1

I have many proxy oak trees in my scene but is it best to reference in one tree then duplicate that proxy for all the other, or import the first tree and instance the rest.
Doing the first way creates many layers in the ref editor.

Thanks

2

I attach all of one tree together (leaf, truck, branches…), grab the material in my material editor, move the tree to 0,0,0, and use the vray proxy export tool. Once V-Ray created the proxy I instance it around my scene.