Add additional row above topmost captionsummary row in GGC

How can I add additional row above the topmost caption row. I would like those rows to scroll horizontally with the other rows and technically be part of the ggc.

Hi James,

The CustomSectionInGroup browser samples demonstrates how to customize the layout of groups. It adds a custom section for each group and displays the SummarySection above the details. The sample also shows how to derive custom elements from the Group and the ChildTable and how to hook them into a customized Engine object.

Here is a path.
[install drive]\Syncfusion\Essential Studio \4.3.0.0\windows \Grid.Grouping.Windows \Samples \CustomSectionInGroup\

Thanks,
Haneef