From my understanding, you need to break up objects inside the rF2 parent object based on the materials they use. The easiest way to do this is...
Thanks for the tip! I had no idea those options were buried that deep within all of the properties that the script adds. Did some quick testing...
I'm slowly working my way through figuring out how to make tracks for rFactor 2 entirely within Blender (For anyone landing here from Google also...
Separate names with a comma.