Asus X756U E-Manual page 19

Numeric keypad
The numeric keypad toggles between these two functions: for
numeric input and as pointer direction keys.
NOTE: For more details, refer to the Using the numeric keypad
section in this manual.
Notebook PC E-Manual
Drive activity indicator
This indicator lights up when your Notebook PC is
accessing the internal storage drives.
Airplane mode indicator
This indicator lights up when the Airplane mode in
your Notebook PC is enabled.
NOTE: When enabled, the Airplane mode
disables all wireless connectivity.
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