A dedicated data field for cyclists challenging extreme mountain long rides and brevets like "The PEAKS". [Key Features] Real-time Margin Calculation: Calculates and displays the target speed (TGT) you must maintain on upcoming climbs based on your total distance, time limit, and current progress. Virtual CP Switching: Double-tap the Lap button to enter settings, then press Lap to switch the target CP (Checkpoint). Wait 5 seconds to confirm. Manage your pace for the next gate without taking out your smartphone. Custom Settings: Configure your target distance and time limit via the Garmin Connect mobile app. [ Important Note on Course Profile] This app uses a unique formula designed for the extreme elevation profile of "The PEAKS", assuming roughly half of the total distance is descending. If used on standard long rides or flat courses, the time saved from descents will be miscalculated, making the Target Speed (TGT) inaccurate. Please understand this is a highly specialized tool for continuous climb-and-descent mountain courses.