groupByHeaderLayer, 0, 0);
compositeGridLayer.setChildLayer("Grid", gridLayer, 0, 1);
NatTable natTable = new NatTable(comp, compositeGridLayer, false);
natTable.addConfiguration(new DefaultNatTableStyleConfiguration());
natTable.addConfiguration(new GroupByHeaderMenuConfiguration(natTable,
groupByHeaderLayer));
natTable.addConfiguration(new HeaderMenuConfiguration(natTable));
natTable.addConfiguration(new DebugMenuConfiguration(natTable));
natTable.setConfigRegistry(configRegistry);