Accessing different accounts with one login

Hi. I have two (former) Infusionsoft accounts that I access to using two different login credentials (different email). In the profile menu on the top bar I noticed it says “your accounts” (with an S) thus I assume two or more accounts can be accessed with just one login. Is it possibile to unify the login credentials keeping all the data separated (without merging data and campaigns)? Thank you

Do you use the same email to log into both?