Engine edit

Hi everybody !I am one of those guys crasy about realism on fs9. I spent many hours every day to try to make it more realistic. My new project is the PAD Mitsubishi MU-2. I fly one so i know how it sould react and I decided to improve it. I have already created a new soundset for the Garrett TPE 331 engines, corected the spool up rate and the maximum power of the engines. Now i need help for the next step. The garrett tpe 331 engine dont works with 6 handles like the king air in example. (2 power levers 2 propeller levers 2 condition levers) Instead, there is 2 power levers ans 2 condition levers that actuates at the same time the props control. My question is, is it possible to edit the engine response to the condition lever ? I need 96% of engine RPM and between 5 to 20 torque when the conditon lever is selected to HI rpm on the ground. Than when you add power, the RPM increase to 100% and the torque raises. I don t know if flight sim can handle that but if you know how to do this i would like to know. I have not found anything in the .air file to help me.G.F.