Please see the screenshots attached from admin panel configuration pages and front-end example.
The product is free and does not include any licensing code or any callbacks.
Support will be provided here in Discussion Thread or in our Support System at
Feel free to suggest further enhancements for the add-on or report any issues you have and they will be addressed asap.
Please consider posting a review if you are using the add-on and let us and other users know how it works for you.