Multiple users but ONE account

Hi - I’m paying for 3 locations in the UK: mine, my wife’s elderly mum as she has problem neighbours, and my wife’s elderly step mum with major health issues. There are numerous Ring cameras and Ring doorbells at each location. The PROBLEM is that ALLusers can see ALL cameras at ALL locations!! I only want them to be able to see their own cameras (but I still need to see their cameras for safety and security). NB: Everyone’s fine with this, but I don’t know how to set this up. Advice please! Thankyou