[LithTech]
Orthogonal Movement
 
       
  The following table shows the movements possible in an orthogonal view pane. The effects differ from a perspective view because each orthogonal view shows only two axes.

Action Effect
Press and hold I and move the mouse
Change camera position in the plane of the two coordinates being used

Press and hold O and move the mouse
Zoom in and out along the axis not being used (perpendicular to the plane being viewed)

Note that although you can toggle between Walkthru and Orbit movement on the context menu of an orthogonal view pane, it has no effect on your actual movement.

  For more information, visit the official LithTech site at
http://www.lithtech.com