This is an Advanced Carousel, fully controlled by the CMS . No more xml files, image folders, image resizing, thumb making, by hand image uploading. All of this you can do with the CMS . Just play with the options yourself, refresh the gallery, and see how the changes affects it. You can play with the images too (create/delete/rename categories, upload/delete/rename images). Don’t worry, you are not harming the preview.