Log into your account on MyFrontpoint.com.
Click on Users in the left-hand menu.
Click on the name of the user you wish to update.
If desired, type the desired 4-digit PIN in the box at the top under Access Code or click the Generate Code button to have a PIN randomly created for you.
Click the lock icon labeled Locks below the 4-digit PIN.
Click the toggle button next to the Smart Door Lock(s) that you would like the Additional User PIN (access code) to lock/unlock.
Allow a few minutes for the new settings to be sent to the Smart Door Lock.