How to automate changing materials within my rules

[johnasp1]

Hello Intent users
I'm using Automation Professional 2010 (Intent) With AutoCad 2010.
When I'm using Visual Style "Concept" I can control the colors within my rules.
This way I can match a color to a type of material(ie..Oak,Pine).
I would like to be able to do the same thing when I am using Visual Style "Realistic".
While in View/Render/Materials I can set up different "Available Materials In Drawing"
But I haven't figured out how to automate changing materials within my rules.
Is there a mixin that allows these features?
This may be handled differently for "Intent with Inventor" versus "Intent with AutoCad",
I don't know.
Thanks

[johnasp1]

I found a solution to this and thought I'd post it.
While in View/Render/Materials set up different "Available Materials In Drawing"
In the command bar type: MaterialAttach
A menu pops up showing the Material names on the left and your layers on the right.
Drag the Material Name onto the layer desired. The materials are now part of the layer
and will be available and saved with the layer settings in your drawing.
Since Intent allows you to control which layer to display per part through a rule or set
of rules,I can now control the Visual Style "Realistic" within intent.