Whether sending the same message to different audiences, or doing A/B testing, you may want to alter your PowerMail template without having to recreate the original template from scratch. This tutorial shows you how to make a duplicate of your existing PowerMail templates or issues.
Open PowerMail and find your template
This works for published issues as well as templates.
Select and open the template
Open the Properties tab
Once you are in the properties tab, select duplicate.