how to defining the target rig manually

[ProMaxPlusUltralTi]

I know the plugin has this feature, but I don't know how to use it.

On the left side of the BVH file, I would like to orient the left eye and sternum to the right. Can you please explain the specific operation method?

‌

[Alessandro Padovani]

You need to get the bvh module then use “retarget selected to active“.

https://bitbucket.org/Diffeomorphic/retarget_bvh/wiki/Home

‌

[ProMaxPlusUltralTi]

Can you demonstrate manually defining the sternum once? I don't know how to modify the bone map

[Alessandro Padovani]

I’m not sure to understand what you’re asking for. If you mean you want to do it by hand then you could use a copy rotation constraint. But for generic questions on blender retargeting you better ask at https://blenderartists.org/