I absolutely enjoy the sorting pen (and other mods you have created!) for use in a rodeo arena in my saved game. I tried using Giants Editor and Blender with the Giants exporter to 'flip' or 'mirror' the pen for my personal use...but after 3 hours, I gave up. It's just beyond my skills to get this mirrored.
Is there any chance that you would be willing to release a mirrored version of sorting pen? Please?