Welcome to the forum @pap and thank you for your feedback, it helps us improve! 
@bertrandda Let’s see if the solution is to synchronize the calendar twice (maybe), or to create cross-user calendars in Gladys?
Speaking of which, I recently made a proposal to avoid conflicts: Proposition: Ajouter un nombre aléatoire à 4 chiffres à tous les "selector" pour éviter les collisions