Universal Notification Setting - Default to "On" for all Faculty to Receive Student Submission Notifications

I would like to be able to switch the notification setting to default to "on" instead of "off" so that all our faculty get email notifications for student submissions for their respective courses. My understanding is the default is "off" and the faculty have to change this on their own. As an administrator, I would like to default to "on" for all faculty, and then let them switch it off. Thanks!