Traktor KONTROL D2 - Additional Help Actions

1. Press the ON button 1 to zoom in the first beat.
2. Rotate Performance knob 3 and 4 to adjust the Beatgrid.
3. Press the ON button 1 again to exit Beatgrid Edit Zoom Mode.
3.10.3 Additional Help Actions
Tap the Tempo
Tap allows you to manually set the tempo by tapping along the playing track:
Using Your D2—Getting Advanced
Working with Beatgrids
TRAKTOR KONTROL D2 - Manual - 113