I noticed that all well made tracks have a edge around the track to transition from track to grass. who is this added.? is this done before adding the terrain or after.? i'm guessing that 1st you would make a very short track edge using the terrain, save it, then go back and redo the add terrain again, but making it full size. renaming the track edge gmt's, and material name before adding to the final project.? i would like to add a edge around my existing build Thanks for any info.