There are two options for automatic arming and disarming. There is Smart Arming and Arming Schedules.
Smart Arming is included with your subscription and can automatically arm the system stay and disarm the system either at a certain time or based on sensor activity. Information regarding Smart Arming can be found here:
Arming schedules allow you to schedule disarming and arming of the system to stay or away mode. Auto Re-Arming is included with Arming Schedules and can be used to arm the system stay or away based on activity. Arming Schedules & Auto Re-arming require the Arming Schedules add-on. Information regarding Arming Schedules and Auto Re-Arming can be found in these guides:
Changes to your service plan and add-ons are made through the System Manager section of your Surety account. This process can be done at anytime.