Microvellum Community

How to add grain direction to formula generated material?

Hello, can somebody please tell me if it's possible to add grain direction to a formula generated material.
We are using the 5 pieces door and when I nest them sometimes it changes the direction of the grain.
We want to keep the grain along the length on doors, drawer fronts and panels.

below is a snapshot of the material we are using.


if you guys know another solution, I would like to hear it.

Thank you.