You can edit the properties of 3D space surfaces with the Space/Zone Manager worksheet.
Space surfaces can be assigned a number of properties important for processing spaces in a downstream engineering or facility management application. You can define these properties in the architectural plan, and later export the plan or open it in an engineering application to perform calculations, such as determining the heating/cooling load on a building.
Use this procedure to edit any of the following surface properties for a non-associative 3D space: