The sub module for kXGallery is finished and released. You can download it on this site if you register. Note that there is no documentation right now. How you use it? You can insert gallery items in the HTML by using the {kx} token. Each time a token is reached, the module inserts an item there instead, just as simple as that. Note that the module requires the kXGallery, so you have to purchase that module first.
