Excellent job! I have three questions:

1. What are the roads made of-- MDL?

2. Will the height adjustment part of the tool automatically lift/grade a terrain to match the road?

3. If the road is polymesh/MDL geometry, is it be "baked" into a solid piece of geometry which sits on top of the terrain, so that it could be later used by the ABT scene manager or vent's awesome MDL shadow mapper, or is it dynamically regenerated with each level load?

Looks great