You can create a new template in the "Templates" section of Track. From here you can view/edit existing templates and create new templates.
You can edit your template in the same ways as a normal email and add a follow up email to your template by checking the box under the editor. Click create when you are done and it's ready to go.
You are able to view statistics, edit, clone or delete any of your templates by hovering over it on the "Templates" page.