I didn't realize that, I didn't notice the highlighted bars in between the two when you drag over it. This is the same for Mac or PC, right? I do think having the option to zoom out to see more on one screen would be a good feature, too.
Yes, this works on Mac, PC, and iPad. Maybe, the flashing bars between the presets should be white instead of the color of the preset being dropped. They would be more noticeable if there was more contrast from the background.