How to make the thumbnails differ from the original images in jquery lightbox download

Q: I downloaded your free product to see if it would accomplish what I need it
to do before I bought your licensed version. Basically I am trying to accomplish the thumbnail image being different than the lightbox enlarged image. Can this be done with
your software?

A: You can try to do it this way:
generate two separate galleries and publish them into empty folders.
Then exchange the content of "thumbnails1" folders created with VisualLightBox app.
Open the generated html code in any text editor and change the thumbnails file names.