How to get the owi535 bone location in UnrealCV ?

I want to get the owi535 bone location in UnrealCV to get the keypoints dataset of owi535, but i did not see the relative code in your github repository. 

I think you used the add a new command function in UnrealCV, and i have tried, but i did not success. So if  it's convenient, can you give me the relative code to me. My email address is "wangaq126@163.com". Thaks a lot !
