Create a profile from a 3D element

If you have edges in the provided mesh/solid that are representing upper/lower surface where you want (along Alignment), then we can import mesh/solid and extract edge and use.

If you want to create profile on surface, then you must import mesh (or solid that you wil have to convert to mesh) and add feature definition.

2 options in mind, 1 is certainly the best:

1. create a template with simple end condtion seeking terrain vertically to the top, and another one for the bottom
   use target aliasing where you can add the featurized imported mesh
2. You are able to split mesh with top and bottom surfaces you can use to create terrain model.

Thank you Jean-Pierre for the answer. It seems kinda troublesome when it comes to the format of the files one imports in ORD in order to get som specific functionality. Sometimes, coversion is required. But I think you answer is satisfying.

In addition, you could convert the object to a Mesh (if it isn't already) and assign a feature definition with a "Design" Volume type. You can then use the "Terrain from Design Meshes" tool to automatically get a top and bottom Terrain.