Windows 7/8/10
	- Press the Windows Key  and P key.
 
	- The display switcher will appear. While holding down , press the P key to cycle through the various options.
 
	- Choose the Duplicate option by releasing the P key once it has been highlighted.
	
	
 
Apple Macintosh
There is no standard function key for Apple Macintosh Display switching. To duplicate a display on a Mac, follow these steps:
	- Make sure your additional display is properly connected and powered on.
 
	- From the  menu, choose System Preferences.
 
	- From the View menu, choose Displays.
 
	- Click the Arrangement tab.
 
	- Enable (check) Mirror Displays in the bottom-left corner.
	
	