| Key | Function | Soundslots | Volume CVs | Volume value |
|---|---|---|---|---|
| Light | Directional Headlights | |||
| F1 | Bell | 4 | 283 | 99 |
| F2 | Playable Airhorn | 3 | 275 | 128 |
| F3 | Coupler Clank | 5 | 291 | 128 |
| F4 | Dynamic Brake | 6 | 299 | 70 |
| F5 | Aux3 output (pre-set to Mars Light) | |||
| F6 | Aux1+Aux2 (Ditch Light) | |||
| F7 | Switching Mode | |||
| F8 | Prime Mover Sound On / Off (Mute) | 1 | 259 | 128 |
| F9 | Manual Notching (Up) | |||
| F10 | Manual Notching (Down) | |||
| F11 | Radiator (Fan) Sound | 8 | 315 | 128 |
| F12 | Dimmer (Headlights) | |||
| F13 | Aux4 function output | |||
| F14 | Detector Sound | 9 | 323 | 8 |
| F15 | Crossing Communication | 10 | 331 | 128 |
| F16 | Rail Clank (works only if F8 is On) | 11 | 339 | 128 |
| F17 | Brake Set / Release | 12 | 347 | 128 |
| F18 | Sanding Valve | 13 | 355 | 128 |
| F19 | Short Air Let Off | 14 | 363 | 128 |
| F20 | Compressor | 7 | 307 | 77 |
| F21 | Pop Valve Sound | 15 | 371 | 128 |