Wow, I’m learning a lot here! Really cool to see different ways to solve this issue.
As usual I took the low tech approach (which I guess doesn’t work in as many cases). I separated the dimensions of the Position and pasted this on the X Position that already had some keyframes, on a layer with a keyframed slider control.
transform.xPosition + ((wiggle(1,250)-transform.xPosition)*effect(“Slider Control”)(“Slider”))
It works, but it’s not pretty. ?