It is not possible to add an integrated numeric keypad to an Asus laptop that was not originally equipped with one. The design of the chassis and top case does not allow for the integration of additional keys, and no official Asus keyboard is designed to modify this configuration.
What solution if your keyboard no longer meets your needs?
If your Asus keyboard is damaged or no longer suitable for your use, the solution is to replace it with an original Asus keyboard compatible with your model.
Check compatibility before replacement.
Each Asus laptop has specific references. To avoid any mistakes, it is essential to precisely identify your model or serial number in order to select a perfectly compatible keyboard.