Create Customer Goups

To create a Customer Group, click on the Group icon (Image 1)  in the lower left of the Customers Tab Window.
This will display more options.

Click on the Plus sign (Image 2) to add a Group.

This will open the "Add New Group" window.   Enter the new group name and click the "Create" button.
The group names will be listed in the column to the left of the customer names.