Movie NX, access Powertrain quantities

Hello,
I am a member of Formula Student team. We are using movie NX for the driver in the loop. I want to add bars showing how much torque each motor is making. I have trouble accessing the Powertrain variables from Movie NX python API. I need to access PT.Motor.Trq. I can easily access any Car.variable, but I cannot access PT. I am attaching a screenshot of what I need. Does somebody know how to do this?