Is it possible to add new images in existing jquery image upload preview gallery?
A: If you want to add new images to VisualLightBox gallery without republishing, you should
change VisualLightBox BODY section directly on the html page and upload new images to 'data/images' folder.
But VisualLightBox app. generate thumbnails also. So, you need to create thumbnails in any graphic editor (for example, Photoshop) and upload them to 'data/thumbnails' folder.
The fastest and easiest way is to add new images in the application and re-generate the gallery.