Can I change my email address and keep my yahoo account the same?

I would like to change my email address but keep my yahoo account the same. Am I able to just change my sign in name and keep all my emails, contacts, folders, etc?Can I change my email address and keep my yahoo account the same?For security reasons yahoo do not allow you to change your email address you need to open a new account to get a different address, but you can create a extra yahoo email address within your present account to do so use this link.

http://edit.yahoo.com/config/list_alias

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