I'd like an option to delete all saved locations with a confirmation for some idiot proof since it's good practice.
BaseCamp has an issue where it's not deleting items from the Epix but makes it look like it did so after several route updates and way point changes I ended up with over 100 items to delete. While this is I hope a bug and not a feature, this caused the need for this delete all since it took a very long time to delete everything, not just the small example I gave in my forum post below.
Despite the bug, this would be a useful feature if you're actively setting and deleting way points, or just accumulated a lot over a long trip and need to start fresh without a computer to manage the device (assuming BaseCamp could delete the stuff in the first place).
https://forums.garmin.com/showthread.php?295332-Deleting-device-waypoints-routes-tracks-maps-from-BaseCamp-does-not-work&p=660860#post660860