You can not do multiple scratches without pressing the horses name and then, after the reload, pressing another. The sort feature is the start of another set of features coming in the future. I do expect the save button will include scratches in the future. I also hope to be adding a way to share these saved with the forum users. We will probably obscure the sharing order of the paid tracks to non-paying members so that people do not use it to provide the EP order to non-subscribers.
We could rewrite it so that only the race that scratches gets reloaded. But to save time and move onto more, we did it as is to save time. In the future we can improve this if the demand is real. I wanted the swipe right and swipe left of the old E-Ponies app to work as well, but right now we just use the links.