The 3D View command part of PowerPack for Revit can be used for automatically generating 3D Views.

3D Views panel
There are 4 main areas covered by this tool:
Section Box - gives you the ability to use a section box in real-time
Levels Displacements - helps you slit the 3D view by levels
3D View for Each Level - automatically creates a 3D view for each building level
Auto Section Box - automatically creates a 3D view of the selected objects