Long time fan of OmniGraffle, and also long time user of the Contour Shuttle products (I do tech support for them), so I created settings for our Shuttle products to use with OmniGraffle & OmniGraffle Pro. Use our settings or customize them to your liking.
http://forums.contourdesign.com/viewtopic.php?f=9&t=4869
Enjoy,
Terry
Contour Design
Shuttle Tech Support