HI,
You can't edit the size of that blue DOTS area as it is resize itself depends on
- how big your large product picture is
- how small is thumbnail is.
As you might notice, the blue dot area is representing the area that is being zoomed. IF you are willing to get more zooming effect, then you need to upload some BIG pictures. At least 900x900 product pictures to use our Zooming efficiently.
If the thumbnails are about 400x400 and if the large picture is abour 500x500, then you won't get any zooming effect, right? Our Zooming effect extension doesn't VIRTUALLY enlarge the picture. Because it is impossible without any quality loss, even Adobe Photoshop can't do it. Try to zoom any product with Photoshop, you will lose picture quality, right? Same thing in our zooming. Picture must be big to get the zoom effect therefore, depends on how large area is zoomed, the blue dots area is re-sized to represent corresponding zooming area.
Flexible Support Team.