Missing "Force Coefficient" for PhysX Fixed Tendons

The Omniverse Physics documentation speaks of a Force Coefficient for Fixed Tendons : Physics Core — Omniverse Extensions documentation

a per-axis Force Coefficient that scales the force applied at each axis, i.e. joint. In the demo, the tendon should only apply forces to the second, passive joint, so we set the force coefficient to zero for the drive-joint axis, and to -1 for the passive joint. It must be -1 in order for the tendon to drive the joint in the correct direction that reduces constraint violations.

Contrary to what the doc says, the snippet does not use this parameter.
We cannot find this parameter in the code demo snippet, the Omni GUI or any .usda.

Does this parameter exist or is the documentation wrong ?

Thanks