I set up a move using the FFA deformer and got a series of keyframes like shown in the attached. In the help files I found a notation about how to add bezier controls to these keyframes, but now I can’t find it, and I’m wondering if I am confusing it with another tool. As it is, the linear transitions are too jerky, so I’m hoping there is a magic button that will let me smooth them out 
Also, I wanted to use the plain effector to add a spring to the landing point, rather than keyframe the overshoot, but that doesn’t work either.
Maybe I just built the whole thing wrong :(