The Single Tree View is the mode of a published model that allows you to render different model views as the nodes of a single navigation tree. This mode enables you to navigate a document without having to switch between different views. 

To enable the Single Tree View

1. Open the View Diagram of the template that you intend to use for publishing.
2. Double-click the element with the «Document» stereotype.
3. In the open Specification window, set the Single Tree View property as true.
4. Click the Close button.
5. Save the template file.

When you publish a model using this template, all the views of a published model are rendered in a single navigation tree. To access the content of the desired view, simply expand the node of that view in the Navigation pane.