http://blogs.msdn.com/usisvde/archive/2008/11/24/new-screencast-adding-tabs-to-a-tabset-in-office-2007-apps.aspxYou may have noticed, say in Powerpoint, that when you click on a Chart that you've inserted there is a cool little grouping of tabs that happens.  You'll see that you get a "Chart Tools" tab set created in the title bar that shows youen-USCommunityServer 2.1 SP1 (Build: 61025.2)