Leica S2 Instructions Manual page 87

Detailed description of changes
2 / Firmware Update 1.0.1.8
1. Automatic Bracketing Function
now you can choose whether you make all bracketing expo-
sures by pressing the shutter release button only once or the
traditional way by taking picture by picture. This feature is very
helpful if you use the pictures for HDR processing afterwards.
2. Custom Functions
Now an additional button (upper right side) is ready to custom
function. This features a quick access to settings and gives the
photographers the opportunity to customize the Leica S2 to
their needs and demands.