If you take a look at the Demo of PanelBar (http://demos.telerik.com/silverlight/#PanelBar/FirstLook) that is essentially what I want, but with the added functionality of collapsing the entire PanelBar to Left and information on the right expanding to the left. With just a button or something to re-expand the menu.
Apologies if there was a more appropriate area to post this, as this was my best guess.
Apologies if there was a more appropriate area to post this, as this was my best guess.