Duo Nomand gpx with training partner to calvulate prior what power to target
I am doing a 2 up TT called Duo Normand. Would it be possible to ride the real life route with my tt partner to help us know what power to best target for the event? Like s proper 2 man tt on a real life route.

Many thanks for your suggestion, and support for TrainingPeaks Virtual.
The new GPXplore experience that has just been released will allow you to upload custom GPX files of whatever route you want, and ride them with whoever you want, so hopefully this will give you everything you are looking for.
Currently we're testing the feature with a limited set of iconic World Routes, but the full experience where you can upload any route you want will be coming later this month.