Thanks for bringing this up and for the well detailed outline. This would be a great feature, I really hope that Zwift can see the benefit here for athletes that are training for races away from home. My personal desire as an athlete as well as a professional coach would be to have the ability to upload GPX routes of destination races and events around the world to help with training and preparing for specific courses. I personally wouldn’t expect or need anything fancy and having the routes generated automatically would save time. Being able to see the map, the gradient changes and the turns to help prepare mentally as well as physically for the race would be a great training tool.