As the title says, I tried Level 2 with the Dash8 and didnt see any pax boarding or deboarding.
It was a flight from Innsbruck LOWI (Orbx) to Vienna LOWW (FlyTampa). As i tried the same parking stand with the Fslabs A319 I was able to see passengerd deboarding at LOWW. Couldnt test at LOWI with another aircraft so far.