Currently when defining the horizontal earth loading on an abutment, the only option is to have a triangular loading from top to bottom. The "Mag2" input box (for the load magnitude at the top of the load) is set at 0, greyed out, and cannot be edited. This represents a single soil layer that is uniform from top to bottom. However, sometimes multiple different layers of backfill need to be modeled, particularly if expanded polystyrene (EPS) blocks are used as abutment backfill. Also would be great if the Auto Generation can generate loading for multiple different layers of backfill, including EPS blocks.