Tap Features:

Double Tap 6 to Unlock Tap Functions / Single Tap to Lock tap functions.
Tap Centre to Zoom.
Between 1 & 2 to toggle Faces.
3 to adjust Brightness.
9 toggle Dim – Auto / On / Off.
Between 10 & 11 to toggle Bezels.
Tap 12 to park hands / Tap again to reset.