Twitter led me to a new technology / Revit / BIM blog at http://www.jarodschultz.com/

One recent post about Section Boxes included two great tips:

  • In a 3D view, you can re-orient the view, adjust the Section Box, and then use Rewind on the Steering Wheel to get back to a previous orientation (the Section Box remains as you modified it)
  • When you use Orient to View to grab a section cut plane from a Section view and apply it to a 3D view, you can then re-orient the 3D view (by using ViewCube etc) and the Section Box remains.

Read more at:
Jarod Schultz: Section Boxes in Orthographic/Perspective Views | Jarod Schultz