Visit All button for Trackables

While logging caches in the app, it would be nice if we could "Visit All" TBs to a cache. A button at the top of the list of TB's could accomplish this. Hitting the button a second time should remove the Visits (ie. be a Visit None button). 

A Drop All button might be useful, but also dangerous. Maybe just stick to the Visit All button. Or offer the ability to have these buttons as a Setting option - turn the buttons on/off in settings?