Feature request | Add Shortest Edge Resolution Option

Although we have the option to set the resolution to the longest edge when upscaling in Gigapixel, I would also like the option for upscaling to the shortest edge. This option is useful to me because of a process queue having a mix of horizontal and vertical pictures. Although I could set a scale factor, the way the files are organized is based on the end resolution, so this would be immensely beneficial for these use cases.