Non-rev planning often starts the other way round from normal travel. Rather than picking a destination and hoping for a seat, you look at what your home airport can reach and work from there.
What Route Explorer does
Route Explorer maps the routes flown from an airport, so you can see at a glance where you could realistically get to. It is useful for spotting a hub worth connecting through, or finding somewhere new when your usual route looks full.
Where to find it
Open the 'Menu' tab and tap 'StaffTraveler Route Explorer'. It opens in your browser rather than inside the app.
Then come back and check the loads
Route Explorer shows you which routes exist, not how full they are. Once you have a route in mind, search for it in the app and request the loads to find out your actual chances.