I purchased an 8 day Flex Pass for Switzerland on the SBB.ch website. After purchasing it, I realized that I can't load the pass to the app. Has anyone found a way to do this? If not, how do use the Flex Pass once the day that it is to be used is activated? Do I have to print out the activation QR code each day? Do I have to get tickets in advance, at the train station, or just hop on the train that I want and show the QR code? (I'm asking about normal trains - not the sightseeing ones or the special funiculars)
Thanks!