I'm designing a road along an existing corridor which is sitting on a retainment wall. The problem is that I have to make it a couple of meters wider, so I have to fill in the space under the new road and hold it with a new wall. I've included the daylight intersection on the edge of the assembly. Did the same too with the wall, but this one does not cut the slope. How can I do this? Thank you!
P.S: I'm beginning to work with C3D, excuse my poor knowledge!