Very easy to do. Do the following after it's installed:
Step 1: Enabled "Keypad" in BdyCM which enables the hardware itself (use Keypad in search bar in BdyCM module in easy mode, not asbuilt)
Step 2: Enabled "Keypad" in APIM successfully, enables the option in your infotainment screen.
Step 3: Perform the BdyCM Local Interconnect Network New Module Calibration (will be in the wrench icon on the left bar in FORScan).