How do two people get notifications for only one doorbell on a multi-doobell account?

I pay for Protect Plans on two Video 3 doorbells, so I put them both on my account. One doorbell is at my house and one at my sisters house. How do I configure them so that my sister receives only notifications related to her doorbell and I receive notifications related to my doorbell? I thought that each of use could turn off the notification option for the other doorbell but it appears that when I make changes for the settings for my sister's doorbell in my app, it also changes them for her.