Change/set system failure parameters during flight

Please permit the engine and other system failure parameters to be set or adjusted during the flight. Presently they can only be accessed when the flight is being set up. That way, after an engine failure and successful forced approach, it would be possible to reset the engine to be functional, but fail again at some future random time. This would be very helpful to those of us who are certificated pilots and use the failure function to practice our response to engine or other systems failures.

Yes this is a nice idear, also will it be nice so change flight settings like Online User in Flight.