Options related to customizing the user interface for your shooting style.
Pixel Zoom Settings

These settings adjust the functionality of Pixel Zoom which enables you to zoom in on your image at any time when viewing your shot (move up on joystick or swipe up on touch screens)
Second Level
This option determines the desired zoom level for the second ‘stage’ of pixel zoom, by pressing up twice on the joystick (swiping on touchscreen) when viewing a shot.
Status Display Settings

The Status Display is a discreet information bar at the top or bottom of the image for displaying signal format, frame rate, time and battery life (if applicable).
UI Lock Settings
UI Lock is like a ‘hold’ switch which disables user input while active. This is useful in scenarios where there is a risk of the monitor's controls getting bumped.
UI Lock was added to touchscreen monitors in firmware 3.5.0. Once enabled in the Settings menu, pressing a finger on the screen for 2½ seconds will lock the screen. Pressing the screen again for 2½ seconds will unlock the screen.

Hold Joystick to Lock UI/ Press and Hold screen to Lock
Enables or disables the UI lock at any time via a press-and-hold on the joystick or touchscreen for 5 seconds.
When you touch the screen or hold the joystick down, you will see a progress bar appear at the top of the screen and then it will say locked. There will be no other indication that the screen is locked.
To unlock, again, hold for 5 seconds and the word Unlocked will appear.