GGU-3D-SSFLOW: Step 2: Create record
Start GGU-3D-SSFLOW and go to the "File/New" menu item. As you do not wish to proceed via "Common systems" answer no to the question and enter the number of element layers.

In vertical sections of the embankment a maximum of two soils need to be differentiated. It is therefore sufficient for mesh generation to enter two element layers.