One of the very useful tools in Revit are Section Boxes. We use these to isolate parts of the model in 2D and 3D views.
Scope boxes are also used to control the view2 of plans, section and elevations. They also assist in section boxing 3D view of the model views. (I use Coins to undertake this).
A very useful feature that should be provided is the ability to control their dimensions of the scope box by aligning to grids and entities. Parametric control of the length, width and height would also be useful as well and x,y,z positioning.