Options → User Preferences → Navigation style picks which mouse
gestures pan and orbit the model view (#1480):
- CAD (default): middle button pans, Shift + middle button orbits.
- Blender: middle button orbits, Shift + middle button pans.
- CATIA: middle button pans; pressing the left button during it orbits,
so 3D navigation needs only the mouse.
An armed orbit tool always orbits. The choice is saved with the user
settings.
Co-Authored-By: Claude Opus 5.5 <[email protected]>