View map.
Put app in background. Re-open map.
Tap bus stop. See arrivals.
Back to map. Click "Change source" icon, close. Do it again 5 times.
Click "Change source" and change it (from Mato to GTFS).
WARNING: I SEE NO REALTIME STUFF. BUT MAYBE BECAUSE GTFS IS SHITTY? LOL
Click "Change source" and change it again (from GTFS to Mato). See realtime stuff again.
See bus lines. Open one.