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VP3256-4K Hot Keys
From ViewSonic Documentation
Hot Keys
When the On-Screen Display (OSD) Menu is off, you can quickly access special functions by using the control panel keys.
| Key | Description |
|---|---|
| 1 | Press and hold the key for 5 seconds to select User mode. Then select the desired User mode to activate.
 |
| 2+3 | Press and hold the keys to lock/unlock the OSD Menu.
When the menu appears on the screen, continue holding both keys for 10 seconds to lock/unlock the OSD Menu.  |
| 2+4 | Press and hold the keys to lock/unlock the Power button.
When the menu appears on the screen, continue holding the key for 10 seconds to lock/unlock the Power button.  |
| 3+5 | Press the keys to display/hide the boot up screen when the device is turned on.
 |