https://www.youtube.com/watch?v=4UqgsCfC5Ow&t=2s in this video, I will show you quick tips how to correct mocap motion with the New Effector data in iClone8.
1. make sure the limb's motion is under the Effector active condition(the circle with cyan color), which means the limb control by effector motion data, check the state by Edit Motion Layer.
2. all the effectors were under the root node, for precise correction purposes, it has better to transfer the root motion back to the hip.
3. select the clip and find the base motion layer in the Animation Layer dialog, then unlock the layer
4. Search the foot effector in the curve editor and start to tweak it