I've recently bought two Amazon Echo Dots 3rd gen and have configured them both on my home network. When I set the first one up the Echo Dot offered to remember my voice so it could detect it was me who was talking. I want to do the same with two other people in the household so that we can each have individual voice accounts with Alexa, but I'm not sure how to do this. Can anyone who uses Alexa let me know how to configure it? I have the app installed on my Android phone.