Selectable LOS or Collision faces

Hello everyone

I am starting to work with collisions in the T3D engine.

The plan:

1. I would like to acheive is being able to turn off A collission mesh for a static object
that is mounted to another object.
2. Get a list of the faces of a objects collision or LOS.
3. Turn off a face of a collision mesh or LOS on a object.

Obviously if (2) is available I think that 3 should be doable. However, if you turn off a face of
a vehicle will it function correctly.

If anyone has done or has any direction, I would appreciate it very much.

Thanks