How to implement floating tabs in VS 2010?

I am creating a WPF Tabbed Application. I am planning to install a MapPoint control (ActiveX) on one of the tabs. I want to be able to float on this tab just like in VS 2010. As a result, the widow must contain the same instance of the MapPoint control (because each instance of the control launches a separate instance of MapPoint). Any idea how to implement this?