Table/Tab Labels for a Tabbed Table

Does anyone know how one can get the current Tab(Row) label for a Tabbel Table that is placed within a rich text field such as the Body field. I have been successful in getting the current value for a Tabbed table that is created as part of a form with Domino Designer, but cannot seem to get the current tab/row label when created and placed within the Body field. I am looking to capture the activa Tab name as users navigate/press the different tabs… so I would need to somehow intercept the name using some OnEvent.

Any help/pointers would be appreciated.