I have multiple objects in different locations that I have been animating with the NLA Editor.
I want to modify this "flap" action so that it causes the objects to move up and down as if the wings were propelling the birds upward before they fall down to their original height. How can I do this while keeping the objects in the same relative location? So far, I've only been able to animate their location globally, so I can modify the action, but it will put all of them in the exact same coordinates, which is not what I want. I want the action to affect the objects’ local location, not put them all in the same place.