The "Surcharge" frame contains a table with a list of input surcharges. Adding surcharge is performed in the "New surcharge" dialog window. The input surcharges can be edited on the desktop with the help of active objects.
All input parameters of a surcharge can be modified in the construction stage where the surcharge was specified. Only the surcharge magnitude can be modified in all subsequent construction stages (option "Adjust surcharge").
Influence of surcharge on the change of stress in the soil body is described in the theoretical part of the help section.