Yes, you can create arming reminders in Alarm.com. Below are steps to use the notification page and create a new notification. Select the Arming Reminder type and you can select the time the system should be armed by and recipients for the message.
I have the exterior camera set to a very generous recording policy. But when the landscapers come, it ends up saving 40+ videos. Is there a way to “temporarily” pause the camera while they are here for an hour or so?
You can disable and re-enable recording schedules manually on the Video > Recording Rules page. There is an on/off toggle for created rules.