no, only aileron and rudder trims are set on the ground in options/special tab. elevator trim is in the plane and player modified like the P-51D. I tend to think this airplane is an evolution from the Fokker WWI stuff. And you can guess the amount of forward stick from rise of flight.
I usually set my rudder trim to a target speed and hold aileron trim the same amount in the opposite direction. This usually means having hands on the stick all the time since they are not modifiable inflight. Elevator trim is also sensitive you must use a rotary encoder as opposed to the hat switch. At least thats my opinion. Otherwise, in a dive past 500 kph, your stick is useless...