General Building Generation Settings
Show Wireframe –toggle whether to display the model wireframe in the editor window
Build Tangents – generate vertex tangents on the generated model in the scene. This is an expensive operation so it’s not done automatically. Some shaders require this information though.
Build Lightmap UVs – build the second set of UVs for compatibility with the Beast lightmapping engine. Same function as the option in Unity’s model importer.
Draw Underside of Building – toggles the generation of the underside of the building, used in some programs for shadow generation.
Foundation Height – select the height of the foundations