IDimSelectionSchema.Clear

Copy example

Sub UserProc;
Var
    MB: IMetabase;
    ObjDesc: IMetabaseObjectDescriptor;
    DimSelSchema: IDimSelectionSchema;
    MObj: IMetabaseObject;
Begin
    MB:=MetabaseClass.Active;
    ObjDesc:=MB.ItemById("TAB_DIM");
    If ObjDesc.Children.Count<>0 Then
        If ObjDesc.Children.Item(0).ClassId=1030 Then
            MObj:=ObjDesc.Children.Item(0).Edit;
            DimSelSchema:=MObj As IDimSelectionSchema;
            DimSelSchema.Clear;
            MObj.Save;
        End If;
    End If;
End Sub UserProc;