I'm sure there is an easy way to do this. I simply want to eliminate the GSC Total column (and all other Total column) essentially disabling the grouping feature.

here is the code which sets the above up:

            var pm = new HierarchyDescriptor<SpecialsSummaryItem>(p => p.Broker);
            pm.AddLevel(p => p.Broker, "Broker");
            pm.AddLevel(p => p.Security, "Security");
            flatDataSource.AddHierarchyDescriptor(pm);

Thanks,

Damon