How to make rhino block showing colors of original layers?

rhino treee.3dm (2.6 MB)
A simple question about reqresentation in rhino:I imported a tree block from SU, and explode it to edit materials of branches and leaves.Problem is when i need to block it again, iis there any way to preserve the materials in those two layers, instead of only showing the material on the block layer?

P.S. Is there any websites for good representation “proxy” to put in rhino? When you only need to capture some views or spin in the model in render/arctic views.

Thanks in advance for any input and thoughts.

lol…guess i found the answer to my own question…
just by setting material of the block to “by parent”, the block preserves the original materials of its layers/sub-blocks…

Anyone has better places for rhino proxy sharing?