| Test code | ! |
| Reduce opacity | < |
| Increase opacity | > |
| Application (move marker/label) | ? |
| Set camera | C |
| Set home | H |
| Go home | h |
| Increase point size | p |
| Reduce point size | q |
| Render surfaces (Phong shading) | s |
| Render surfaces (wireframe) | w |
| rotate | left button or 'a' + left button |
| zoom | scroll wheel or 's' + left button |
| pan | right button or 'd' + left button |