Inventor has a great tool where you can put a plane anywhere you'd like as long as you can define it. I believe Plant should have something similar. Allow us to make ground planes without having to make a physical extrusion. I don't need it to have a thickness, I just like seeing what's above and below grade. Or if I want to put in where a fenceline might be but don't actually care about what it looks like, I just need a plane to represent it. Surfaces in general are a great tool in Inventor that I think should migrate to Plant 3D
