Leica S2 Instructions Manual page 78

9.3 Custom settings for depth of field preview button
For particularly fast handling, the functions of the buttons
1.21, 1.23, 1.24, and 1.3 can be customized to provide im-
mediate access to your most important or frequently needed
menu functions.
To do so, the buttons are first customized by defining which
of the menus' functional groups should be called up with
the quick access function. From now on, the function of the
depth of field preview button 1.3 can also be customized as
desired.
8 / Firmware Update 1.0.0.16
9.4 Selectable top panel standby time
The standby time of the top panel display can now be selected
in the menu.
9.5 Control element lock
A new function has been implemented with which the control
elements for exposure setting (shutter speed dial and click
wheel) can be locked to prevent accidental changes. The
control element lock can be activated and deactivated in the
menu or defined as a quick access option (please refer to 9.6).