To add an e-mail template group:
Note: All contacts are set to receive HTML by default when they come through the online store. If you do not want a specific customer to receive HTML e-mails, go to the customer's account details page and click on the edit primary button. Uncheck HTML for the E-mail Format. Click edit contact.
Caution: This will replace this existing template. Make a backup of your existing template if you do not wish to lose it.