I wrote the developer last week, but never heard back, which is disappointing.
Also, there are no instructions on how to size the popup window.
Finally, this product is not mobile device friendly. It does not resize when viewing on a mobile device and is impossible to close. I wrote the developer about this as well, but my comments fell on deaf ears.
These things are, or should be, the responsibility of the developer to provide us out of the box.
Without these functions, a user will need to know how to write code or hire someone to fix it for them.
The plugin could be an "A" product, but I'd give it a "C". Customer service is an "F".