Is there a basic daylight that has no other parameters? I built the rest of it (I hope) with a basic lane, then 4 "LinkWidthAndSlope" subassemblies - one for the foreslope, one with 0 slope for the bottom of the ditch, one for the backslope of the ditch, and one for the berm/shelf. But what do I use for the daylight? Everything seems to have ditches, etc built into them.