ILDEScatteringData ScatteringData

ILDEScatteringData ldeSD = Surface_n.ScatteringData;        //  READ ONLY
SurfaceScatteringTypes sdSSTs = ldeSD.CurrentType;          //  READ ONLY
ISurfaceScatteringType sdSST = ldeSD.CurrentTypeSettings;   //  READ ONLY
ISurfaceScatteringType sdSSTNew =
   ldeSD.CreateScatteringTypeSettings(SurfaceScatteringTypes.ABg);
bool bSC = ldeSD.ChangeScatteringTypeSettings(sdSST);

Next:

• SurfaceScatteringTypes (Intellisense Screenshot)