| Tab | / | * | <- |
| 7 | 8 | 9 | - |
| 4 | 5 Abc | 6 ?! | + |
| 1 | 2 | 3 | Enter |
| 0 | 00 | . |
Shows a live, millisecond-precise timecode at the same time on every local display. Photograph any of them next to the editor preview and compare the two timecodes: the gap is the real end-to-end latency.