If all the accounts use the same userid/password, you should be able to create a new account (Tools > Add Account) just like before. When you get to the display that lists all the accounts at Fidelity, the original 7 Quicken accounts should be listed as ignore, the two new accounts should be listed as add.
If the new accounts use a separate userid/password, just add the accounts as you would any new financial institution using the new userid/password.