download iExpressions at
https://aescripts.com/iexpressions/

In this tutorial you learn a very powerful rigging technique. We use the Walk cCycle iExpression which makes your characters walk instantly. Just most a single position control for your character and the expression animates hands, feed and the body to let your character walk where you want it to be. Character animation could not be easier. If this is not yet enough – the expression also allows you to keyframe the position of all controllers on top of the walk cycle. So if a particular step should be a bit higher or the final pose, where the character stops walking, should be different – all of this can be done by simply adding a few keyframes on top of the walk cycle.