Is it possible to associate two names with an iCloud email/Apple Account?

Anybody know if it is possible to associate two names to an iCloud email/apple account? I have a legal first name and a preferred one that I flip between depending on who I communicate with. When I compose an email it will be from "First Name, Last Name" used in the apple account.

[Re-Titled by Moderator]

Original Title: iCloud Mail "Display Name"