Does anyone one have information on how to conditional; add or remove a subgrid?  Seem like one issue would be once the subgrid icon is removed how would one add a subgrid so rows could be added?

Or conditionally changing the subgrid icon based on if the subgrid has records or not. Leaving the subgrid in tact and just changing the icon would give a visual indication if the subgrid has records and still allow adding records to a empty subgrid.

Another thought would be removing or hiding the icon when the subgrid is empty, so the event is still triggered when clicking on a empty icon so the empty subgrid is displayed so one could add a row.

any thoughts on how to do this?