Email Notifications - Can you not watch an App based on your user role?

I was recently added as a QA/Tester to a Bitrise application. I am trying to enable email notifications and most of the instructions advise that there should be a “Watch” button on the App settings page.

My view shows GitHub Source button… but there is no Watch button. This makes me think that it is due to my level or permissions and I can’t see this page.

Is there another way to enable email notifications for new builds in the Bitrise front end UI?