This page can be utilitized in a few different ways. The most common is figuring out the times for the bridges. Bridges start their events on a fresh map. After you completed them, you can start the timers for it. If you want to keep track of only bridges, on the right side, uncheck the "All" then check the "All Bridges".
Menders are good to keep track of as they will provide the squad with 3 Dragon Coffers afterwards. Getting at least 3 before the meta is a good run. Note that these timers are the respawn rate, not the spawn rate after you get a camp to level 3. Check the mini-map for a tangerine symbol at the respective waypoint to know if it is up.
Priority of events:
Menders → Culls → Brandstorms → Champs