Changing routes on iOS

sometimes I hop on and just start ridding and realize I’m on the mountain loop and would rather be on a flat route or some version there of. I’m not aware of anyway to change this mid ride even in settings. If there is I apologize, if not it would be nice to have. Thank

Before you join the game world, there’s a drop down option to select which route you want to be on (below the workout button, above the names of the riders you can join). After you’ve joined, however, you can only change your route by selecting a different direction on the course.