Using The Keyboard; Function Keys - Asus Transformer Book T300FA E-Manual

Using the keyboard

Function keys

The function keys on your ASUS Transformer Book's keyboard can
trigger the following commands:
40
Puts the ASUS Transformer Book into Sleep mode
Turns Airplane mode on or off
NOTE: When enabled, the Airplane mode disables all
wireless connectivity.
Decreases display brightness
Increases display brightness
Turns the display panel off
Activates the second screen
NOTE: Ensure that the second display is connected to
your ASUS Transformer Book.
ASUS Transformer Book E-Manual