LG 49VL7D Owner's Manual page 15

Selects the Picture Mode.
Views the information of the currently program and the screen.
Enters the White Balance menu.
Accesses the main menus or saves your input and exit menus.
SuperSign menu key (This model does not support this.)
Navigation Buttons
Scrolls through menus or options.
Selects menus or options and confirms your input.
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. (Depending upon the model, this feature
may not be supported.)
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.
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