Numeric Keypad with Alternative FunctionsShown below is the 12-key numeric keypad with Delete and Enter keys.When the Fn keylock is ON (indicated by the icon on the taskbar), thekeys with orange icons provide alternative functions as described below. rotates the screen display by 90 with each press. switches the keypad backlight ON and OFF. switches the sunlight-readable mode ON and OFF. When ON, thedisplay brightness is set to the highest level. serves as the mouse right-click button. C+A+D serves as the Ctrl+Alt+Del key combination for resetting thesystem. ESC serves as the Escape key.