Yes, the Array is made to give you the ability to re-key it. It is manufactured with the KW1 Cylinder and can be specially ordered to come with an SC1 cylinder; this is so each Array Smart Deadbolt can be repinned/rekeyed to match any KW1 or SC1 lock.
You will need to hire a locksmith if you would like to change the key cylinder to match the other locks in your home. You are more than welcome to do this.
For security reasons, we cannot send out BLANK compatible keys for the Array Smart Deadbolt. We apologize for any inconvenience.
If you have any further questions regarding the key cylinder in your Array Smart Lock, please open a support ticket.