| Mouse clicks | |
| Normal | Mark and identify point; make measurement (pick) | 
| With Shift | Center on selected point (pickcenter) | 
| With Ctrl | - | 
| With Shift+Ctrl | - | 
| Mouse drags | |
| Normal | Rotate around X and Y axes; Z-rotate (pinwheel) near top of screen | 
| With Shift | Adjust zoom (up/down); Adjust clipping (left/right) | 
| With Ctrl | Translate in X-Y plane (flatland); Z-translate near top of screen | 
| With Shift+Ctrl | Rotate around Y axis only | 
| Mouse wheel / Up & Down arrow keys | |
| Normal | Adjust zoom | 
| With Shift | Adjust clipping | 
| With Ctrl | - | 
| With Shift+Ctrl | - |