Dell UltraSharp U3821DW User Manual page 50

PIP/PBP Mode Allows you to choose a PBP or PIP mode from the
PIP/PBP (Sub) Select between the different video signals that may
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50 Operating the monitor
preset list, which provides different sizes and
positions of the sub-window. The options are shown
in graphic format, giving a quick understanding of
various layout settings, The default setting is Off.
be connected to your monitor for the PIP/PBP sub-
window. Press the joystick to confirm the selection.
NOTE: The option is available only when the PIP/
PBP mode is enabled.