They actually had a feature (for one release) that allowed you to schedule your app for wakeup at a later time. Unfortunately it had some issues and was removed from the SDK. You can see a bit of it remains in the documentation (see here). I'm pretty sure it is something that they're planning to bring back, but not yet.
Travis
Hi Travis and thank you for answer. The wakeup the application is a great feature and I hope that Garmin will insert it again into a next sdk. Do you know why the developers can't access to the pressure value and why can access to others value such as altitude? Why there is this limitation for pressure? Thank you