Tap Features:

Double Tap 6 to Unlock Tap Functions / Single Tap to Lock tap functions.
Tap Centre to Zoom. (Multi)
3 to adjust Brightness.
9 toggle Dim – Auto / On / Off.
12 to toggle Faces.
Tap between 1 & 2 for previous Ucolor and between 4 & 5 for next Ucolor. Both these taps are only available when Ucolor face is active.
Tap between 7 & 8 to toggle indices colour.
Tap between 10 & 11 to toggle Hands colour.
Second Hand Battery Reserve in Dim.