Just about completed the initial layout for the roads for all the different tracks. Is there a way to calculate how many Km of roads I am using? The red lines indicate tunnels.

I would love to be have some additional functionality for the roads:
• the ability to select multiple points along the road to apply various widths, tilt to more than one at a time.
• the ability to select multiple points along the road to apply the "align terrain height" function to only a portion of the roadway at a time, rather than the entire road.
• the ability to blend road material from one to another within the same road. for example, a road that begins as paved, has a long section of dirt, then back to paved again, without having to use decals or additional road segments.