It works perfectly at the set height of 200px, but I wanted less height (125px). I found that just altering the height in the control and using images 125px high resulted in the images not rendering properly in the browser. When I added a 75px bottom border to the images to bring them to 200px, they rendered perfectly at the height I wanted.
Currently it works only in articles. I would like to be able to use it in a module in the banner1 position so that it stretches right across the page, and look forward to this development.
Support was excellent and very prompt, even though it was holiday time and busy season.
Thank you for a stylish extension and excellent support.