EDIT/CREATE NEW PUBLIC PROFILE
You can create 6 new public profiles for each account ID. On your Friend's List click on Messenger at the top and then My Profiles. Then a box will appear...click on Create/Edit Profiles and on the yahoo member directory page sign in at the top and then you can click on View My Profiles on the right This will take you to a new window and you can click the button that says Create New Public Profile.
Make sure to save your changes once you do. Now exit yahoo messenger and log back in. When you go to join a room you will see a drop down menu by your name with your profile names for that main account and you can chat with one of those new profile names.
When you make a new public profile under an existing yahoo account, you will not get a new email address with that and your friend's list shows for you. But you can choose to only use whatever new public profile you want people to see or add.
Please Also Note: You can create totally new yahoo accounts if you want to and still access your old email account from your original name. I have a few accounts and email addresses.
