Perspective Camera 3D views show the building model in a 3d view as it is seen with the eye, with height, width, and depth. You cannot create, edit or modify elements in Camera 3D views.
Vasari creates a perspective 3D view and assigns a name to the view: 3D View1, 3D View2, and so on. To rename the view, in the Project Browser right-click it, and select Rename.
You can create an orthographic camera view by unchecking the Perspective checkbox in the Options Bar.
You can use a section box to limit the viewable portion of a 3D view.