Personally I don't download rotations because if you miss a day you have to move everything around. Since each Meso is 12 discs , you could just download each disc in the day that you want to do it. It looks like you can download a week at a time. If you go to the STS 3 1/2 month rotation and press download , it brings up week one. You tell it what date to start. Then you press week 2 and do the same. And so on. Let me know how it works out. After you download week 1 , I would look at your calendar and make sure it worked correctly.
Jean