[Q] App to jump slides/images in full screen.

I need to do slideshows with 20-30 full screen images, but they need to be selected individually or in different orders each time. I don't really care if it is just jps, or a pdf, or a powerpoint slideshow. I was hoping to use a keyboard remote, so "m" would go to image #1 and "r" would go to image #13, etc.

I haven't found any, and was hoping to avoid having to push the "down" arrow 22 times to go from one to anther.