RR 22.03.00-1.1 Physical Modeler Surface Regions and Region Loads
You can now designate surface regions within STAAD.Pro Physical Modeler surfaces. These can be used to model drop panels, surface recesses, and patch loadings.
Surface regions are "children" of surfaces but can have different material properties and thicknesses. You can also align the thickness of a surface region to either the face or center of the "parent" surface.