RCDC -Foundation design - Multiple Soil layers and Dispersed soil weight to be considered in the Stability checks -Buoyancy and overturning

For the foundation design, Buoyancy and overturning stability checks are performed. Presently Soil above the footing area is considered for the stability checks.
The software should allow the user wants to consider the dispersed soil weight for the stability checks. The angle of repose should be input by the user.
In addition to this, software should allow giving input for multiple soil layers within the given foundation depth.