It would be useful to be able to copy an existing email template from the "Shared E-mail Templates" or "My E-Mails Templates" section. The current options are archive, edit or delete, and a copy button would be useful for when creating an additional template similar to an existing one.
I agree - this would be very useful. It is frustrating having to start from scratch - the ability to copy and amend an existing template would save significant amounts of time.