I'm not sure what motion path you're expecting to see in the program monitor?
One typically turns on motion by clicking the stop-watch, then applying keyframes in the ECP alongside the effect.
No.I don't mean to apply keyframes.
What I want is the transform path in the program monitor.
I'm still puzzled what you're expecting to see ... transform effect controls (which transform, btw, as there's several options?) are all set in the ECP ... you see the results in the Program monitor after you change a setting in the ECP. So I'm not sure what "transform path" you are talking about.