1.1.5 Channel Switching Shortcut Bar
First, click the icon at the bottom of the preview window to call upon the
channel switching shortcut bar. There are OPS(built-in computer), HDMI, VGA,
and Quad Screen to switch.
After the quad screen function is turned on, the preview screen of
the Android home page will display a preview screen of four sepa-
rate channels.
1.1.4 Preview Bar
You can preview the channel of OPS, HDMI, VGA, and quad screen to switch.
Quad screen:
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