Hosting an IVsHierarchy in a DocumentWindow.

We've been using the new MEF-based graph provider stuff as well as the lower-level IVsHierarchyItem-based interfaces (e.g. IAttachedCollectionSourceProvider) for adding custom nodes to Solution Explorer.  I'm wondering if there is a way to host a Solution Explorer-like treeview in a custom editor and manipulate it in the same we do the "built-in" IVsHierarchy's.

Thanks in advance.

Kirk Fertitta