Tab to or mouseclick on the diagram and use the following keys for interactive exploration:
| Key: | |
|---|---|
| A | Activate keyboard driven exploration | 
| B | Activate menu driven exploration | 
| Escape | Leave exploration mode | 
| Cursor down | Explore next lower level | 
| Cursor up | Explore next upper level | 
| Cursor right | Explore next element on level | 
| Cursor left | Explore previous element on level | 
| X | Toggle description mode | 
| M | De/activate direct magnification | 
| N | De/activate stepwise magnification | 
| S | Toggle subtitles | 
| C | Cycle contrast settings | 
| T | Monochrome colours | 
| L | Toggle language (if available) |