I have a problem, I want to replace a default road in an older route but the road is not in the list in surveyor, it's called Road No Traffic and it's black with white dashed lines. How can I replace the road with a different one if I can't do it in replace assets? Only other way would be manual but there's a lot of road. Any way to obsolete the built-in road with a different one? I want to use a more modern double yellow line road. I don't really want to replace the road by hand.