The new release of Metawidget adds support for automatically generated JTabbedPanes to TableGridBagLayout. This is in response to a forum posting by Mark P Ashworth (thanks Mark!).
To take the Swing Address Book from the tutorial as an example, if you have...
...by setting a single parameter on the Metawidget...
...you'll now get...
...note the Contact Details and Other sections are now arranged in a JTabbedPane.