Hi, If I add a motor actuator to a tendon as <actuator> <motor tendon="S2" gear="1"/> </actuator> Will the control value d->ctrl be the contract force on the tendon? Or still the length of the tendon? When I replace the motor with general, it behaves the same as the motor. Does this mean for the general actuator on a tendon, the control is interpreted as force in default? Attached is the model file I'm testing. Thank you for your help! Ran