Strata surfaces can be created with a single click of a button, the surfaces created are standard Civil 3D surfaces, they can be edited and manipulated using Civil 3D commands and are dis-played in the tool prospector like any other surface.
The Civil 3D surface will be created using the Style "KNX_Geotechnical Surface"; if this surface style is not present it will be created. The styles associated to the strata surfaces can be changed or edited.
For more information on editing surface styles, please refer to the AutoCAD Civil 3D user help "Surface Styles and Visualization".