CW TruSpace Directional Ortho Tools
AUTOCAD PRO REVIT ULTIMATE
The directional Ortho View tools enable users to easily navigate to ortho views, providing simple navigation and orientation support.
Mouse Control: Click the Ortho Views button 
to expand the menu. Select the orientation for the view.
Top View: Shift + T
Down View: Shift + D
Left View: Shift + L
Right View: Shift + R
Front View: Shift + F
Back View: Shift + B