411 REFERENCE · Wikibooks
Brlcad/How to brlcad/grip key
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
The grip keys are used in conjunction with the mouse or arrow keys to manipulate the /graphics view window/:
shift - iused for translation (movement)
control - used for rotation
alt - used for constraining movement or rotation to a particular axis