LG LAA015FL9B4 Owner's Manual page 23

Selects the Picture Mode.
(HOME) Activates the Launcher.
Enters the White Balance menu.
(SETTINGS) Accesses the main menus or saves your input and exit menus.
SuperSign menu key.
(Navigation Buttons) Scrolls through menus or options.
Selects menus or options and confirms your input.
(BACK) Allows you to move back one step in the user interaction function.
Quit all OSD tasks and applications.
Allows you to control various multimedia devices to enjoy
multimedia simply by using the remote control through the SimpLink menu.
Selects the TILE Mode.
When the Picture ID number matches the Set ID number,
you can control whichever monitor you want in multi-display format.
(USB Menu Control Buttons) Controls media playback.
(May not be supported on some models.)
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