Update OPEN VR virtual controller to version 1.0.6
It's an updated project based - https://github.com/hustcy/VirtualControllerDriver
This version also provides a shared memory method for controlling.
It's easy to write a simply UI with slider to control the pos & rot of the virtual controller at real time.
Make sure your steamvr component version is updated. I checked at 2017.03.29. Steam is OK, but Viveport is not supported yet.