Shift+RightMouseButton
Inside white circle:
Rotate the scan around vertical and horizontal axis.
Outside white circle:
Rotate the scan around view direction.
Keyboard Shortcuts
Key Shortcut
A Auto adjust camera view to all objects or selected objects.
C Show coordinate systems on/off.
E Show triangle edges on/off.
P Toggle polygon mode between Solid , Lines , or Points .
T Show textures on/off.
N Show vertex normals on/off.
These are the shortcuts for the 3D viewer only. There are other function specific shortcuts which are
displayed in the tooltips.