How do I manage my multiple/secondary Comcast email accounts?

I used to be able to see my secondary Comcast.net accounts from my main account but now I can't see them (just my own account).

One of my secondary Comcast.net account passwords need to be reset but before I try to reset it I want to check the account information (e.g. contact information - email/phone number) or if I can set it from the managing account.