Windows Mail Accounts and Passwords

I have two separate problems:
1) In Outlook Express we could set up separate accounts for each email address. We use one email for family, friends, school, etc. and the other for all the other stuff. In Windows Mail all the email from all accounts gets dumped into one big pile. How can we keep the two separate emails apart?

2) We could also set up Outlook express so that when you logged into an email account you had to type in a password. Windows Mail just opens up and dumps all the new email even though no passwords were typed in. When I go into the account properties the passwords are always gone even though I had them typed in and the remember password box unchecked. What do we need to do so that a password is required to open the email account?