HP EliteBook 8530p Maintenance And Service Manual page 20

Item Component
(5) Pointing stick buttons
(6) Windows applications key
(7) Embedded numeric keypad keys
(8) Function keys
12 Chapter 2 External component identification
Function
Function like the buttons on an external mouse
Displays a shortcut menu for items beneath the pointer.
Can be used like the keys on an external numeric keypad.
Execute frequently used system functions when pressed
in combination with the fn key.