Above you will see the Group Manager with the listed groups in one pane followed by the Group Creater in the other.

First put in the Name of the group you want created.

Follow this with a brief description of the group.

The Display checkmark will display this group in the drop-down for your subscribers on your site. The Ecommerce Display checkmark will allow your subscribers to select the group while checking out in their Cart.

Select Insert and your new Subscriber group will be ready to use and displayed in the Group Manager.