Managing Access to Different Accounts

I had to return my order because I was unable to manage two separate (one business and one personal ) accounts with different email addresses using one app.  I still have it for my business.  For the business we have three people managing our system all using the same email address. It would also be ideal if multiple emails can manage 1 single base station (system) for my current business account.  Also if mobile app can manage and toggle between two different accounts/systems to be able to monitor them in Realtime.  Please update me if any or all this is possible in the future.