My wife and I both have gmail accounts. I've set the Mail app up for mine and that's ok. I then add her account but her emails are ending up interspersed with mine within the same window. We'd like them to appear in separate windows, possibly with the option to call up the individual windows on demand rather than both at once (not that we have anything to hide from each other you understand!). Previously on the PC we could only have one account open at a time through Google so we could sign in to our account after the other was closed down. Is that possible with Mail?