It sounds like you need to lock the foot into world space? To do that on any rig you use the built in IK system. In biped they call it "Planted Keys", but all rigs run on the same basic 2 system principle. To lock a foot into world space... You move the time slider to the beginning of where you want to lock it down (IK…
Yea the copy paste POSTURE will only copy rotational relationships between the pieces and ignores world space. Copy paste POSE, can include Position data for the COM only. If you want the feet to operate in world space you need to use planted keys. But I'm glad you got it working. If you're happy to leave it at that, cool.…
The problem with the copy/paste system is that it only copied and pasted the rotation of the toe, not it's position in world space. If I copied the entire leg chain, it sort of worked, but because the biped01 node was so much higher in world space, the leg could not "reach" that far down. The way I got it to work finally…