Hi!
Usually your Android system should automatically mirror CalenGoo's notifications onto your watch. If that doesn't work, please check if the reason is displayed under "Settings > Support" or if "Settings > Reminders > Show pop-up window" or "Settings > Reminders > Prevent dismissing notifications by swipe gestures" is turned on.
Additionally please check if the notification mirroring is enabled in the "WearOS" app.
Does that fix it?
Please don't hesitate to contact me again if you have further questions!
Kind regards
Dominique Gunia