I've got a RadGrid on my page with one level of DetailTables. Each detail table has a chevron next to it that collapses that table. I'd like to have a chevron on the master table that expands or collapses all the detail tables (if any are expanded, it collapses them all; otherwise, it expands them all). Is this a setting that can be set? I would rather have the same look and feel, rather than using a button to expand or collapse all the tables.