Bonjour , je n’arrive pas a cree un entraînement personnalisé. Je nai pas le carré bleu qui s’affiche.
What are you running the game on? That feature is available on PC, Mac, and full size tablets. It is not available on phones, iPad Mini, or Apple TV. If you create a workout on a device that can do that, it should sync to your other devices. Or you can make workouts in a third party app like TrainingPeaks or intervals.icu and sync those to Zwift.
Information about creating custom workouts:
Information about workouts from connected third-party apps: