Is there a way to add codes to the keycards? If so can someone explain it to me?
This is all I could find in the rules:
Keys require a crafting kit to create. Once created they can store up to 20 passcodes.
When attempting to move through a door, the door will first check if you have the required code on a keycard. If you do not, then it will request the password. Note
Passcodes can not exceed 10 characters or be empty.