After creating a mass for a conceptual design, create a mass floor at each level defined in the project.
Mass floors are based on levels defined in the project.
You can select the mass in any type of project view, including floor plan, RCP, elevation, section, and 3D views.
Initially, if you select a level that the mass does not intersect, the software does not create a mass floor for that level. However, if you later resize the mass so that it intersects the specified level, the software creates a mass floor on that level.
After creating mass floors, you can do any of the following: