No problem. There are two ways to do this. Replace the kybd with the one piece kybd which has the numeric keypad attached. Or, pop out the plastic filler panel, And install the numeric keypad, which has a small cable that goes to the main kybd. Either way, you must remove the white cover, flip over the keyboard assy, and unscrew the kybd. The entire procedure should take less than 15 minutes. I have both in the keyboard and the keypad in stock. Thanks, Paul