It could be a good idea to be able to print several instances a given circuit on the same paper. If your design is small, let say 3x3 cm, and you want to make several instances of the same PCB by yourself, it could be helpfull having all of them printerd on the same paper, so you will be able to use for exmaple on a 100x80 mm photosensitized PCB. Options as repeating on X and Y axis and maximum dimensions will be nice as well. The same could be applicable to exporting to image.