how to bake into pose root transform position x -axis only?

[aquadj]

I tried to use root motion to make the character go straight, but there was a problem that it moved sideways little by little.
So I’m going to “bake into pose” position X in the inspector of the animation clip, but bake into pose checkbox is in the ZX axis. Is there a way to bake into pose x-axis only? I’m still a beginner and this is my first time using root motion, so I don’t know many things. I’d appreciate it if anyone could tell me in detail.

[SolarianZ]

There are two possible solutions to your problem:

1. Implement the OnAnimatorMove message and manually strip the motion on z-axis.
2. Implement a custom tool and delete the RootT.z curve using ModelImporter.