DocumentManager allows you to select what type of container will be used for documents with the DocumentManager.View.FloatingDocumentContainer property.
If the FloatingDocumentContainer property is set to SingleDocument, every floating document will be hosted within its personal container.
If the FloatingDocumentContainer property is set to DocumentsHost, floating documents will be hosted within a container to which other documents can be docked. Documents docked to such a floating container are displayed as tabs. Follow the FloatingDocumentContainer link to learn more about this property.
The current example illustrates how to use this feature for creating a simple internet browser.