You'll find all sorts of interesting hot keys if you scroll down through the list of "Assignments" in FS9. One I assigned for blurries caused by slow loading of scenery is "Refresh scenery" (I use Ctrl F12). This simply reloads the scenery afresh.
As for reverse thrust, you can land a Dash 8 with room to spare at Milford Sound:
Full flaps 98 kts...
At 10ft altitude start tapping F2..F2...F2
As soon as the wheels touch ground the props reverse
Hit brakes
Stop
Release brakes, aircraft backs up under reverse thrust
Hit F1, open throttles.
Take off to amazement of onlookers
