Grid AllowDetailView on a per row basis

[PDtdinpsp]

Right now the AllowDetailView applies to all rows within the grid. But sometimes not all rows have a detail view. Instead only some do.

For example let's say you were displaying movies. Any one off movies would have their own line in the grid and that's it. However, movies that had sequels/prequels would need the detail view to display all of them.