Need to send multiple admin notifications

When a new appointment comes in, as I understand, the admin notification goes to the site admin set under Settings. I manage the site so I am the site admin. However, I am not the site owner or someone who needs to be notified of new appointments.

There are two email addresses (not mine) that should be notified of new appointments. My questions are:

* Is it correct that the admin notification is currently only going to the site admin set under Settings

* If yes, is it possible to send email notifications to multiple email addresses? I think the easiest would be to send to all admin users rather than the site admin alone.