I have a Primary email account and also a sub account. I normally use Windows Mail to access my email. In Windows Mail, I can read emails sent to either account, and can also send from either account.
The only time I go to the Webmail page is when I am traveling and can't access my home computer. In Verizon Webmail, I can only check the account I log in with. It's very annoying and time consuming to log in, check one account, sign out, and then log in to check the other account. By the way I use the same password for both accounts. Is there anyway that this can be changed? It should at least give us the option to add a sub account on the same page as the primary account.