Editing 2D object surfaces
There are four commands for editing 2D and certain hybrid object surfaces: Intersect surface, Add surface, Combine into surface, and Clip surface.
These commands work in any view, as long as the objects involved are in the same plane. If a combination of 2D and 2D/3D hybrid objects (such as floors or pillars) will be used in an operation, the view must be set to Top/Plan.
Equivalent commands can be used for Solid object interactions.