Thank you for writing back.
With the current implementation, that would not be possible. As you have noticed, we are using the GridGroupContentCellElement
to host the custom cells providing the information for the summaries. The location of this cell is more or less static while the inner groups are created dynamically according to the rows in the inner view templates.
In the example, I last sent you, these items are moved on the bottom when the group is expanded. If it is collapsed and the items are moved to the bottom they will be easily mistaken with the summaries of the other groups.
I hope this information is useful. Should you have further questions please do not hesitate to write back.
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