The first step is to create a biped skeleton.
This is not, because the basic will.
Remember, change the key before you modify it, or modify the action of the previous key frame.
The second step is to turn on the auto keyframe and then add the pedal key to the initial position feet. When you set a key, the character can move only on the plane.
When you set the pedal key frame, the top of the timeline turns yellow.
Step three: Then start to set the right foot action at frame 15th, and the left foot is set as a free key frame when the key frame is trampled. Then move the Role Center forward.
The fourth step: then 20 frames, the right foot for the only key frame, the left foot for the pedal key frame, moving the character forward can be realized walking.
This makes it possible to create a character that is easy to move around.
3dmax creating a walking action using the K-Frame tool