[Zubersoft]

If you want to reorder pages when using images, just drag the handles next to each file name in the list to reposition that file. If you are wanting to duplicate pages, you'd have to add the same image file multiple times. The page order feature is really designed for PDFs, as you noticed, as I store that page order field per file (as you could have multiple PDFs in one song and each one might have a custom page order). Due to that design (page order being assigned per file), there isn't an easy way with images to have an overall song ordering. So you'll either have to stick with PDF, or achieve a custom page ordering by importing the same files multiple times and putting them in the order you desire. If you import the same file multiple times, it may warn you about the file existing - just tap that you want to use the existing file (overwrite also works).

Mike