How do I set up additional yahoo accounts?

How do we set up a Y! Family Account linking 2 existing (not new) Yahoo accounts -- our daughter's and ours?

• We've had a Yahoo! account for years, but we just set one up for our daughter today. Afterward, we realized we could have a Yahoo Family Account. We'd like to set that up with our existing accounts, but the instructions we find at Yahoo.com are confusing (to us), and seem to require creating all-new accounts, which we don't want to do. It doesn't seem logical that creating new accounts would be a requirement, so I'm sure we're missing something. We'd appreciate any and all help with this. Thank you so much.

• Answer:

  You can add addresses to existing accounts by going to Options on your mail page and then to Mail Addresses and it will walk you step by step. You can't sync up Yahoo email addresses from another account though.