Wow thank you!! You are a huge help!
I’m now using this expression and have parented it to the black box. The bulk of what I want is happening now. I have one last more questions.
1) How do I change the in/out to to specific frame numbers instead of 1 sec+2 sec? Here’s my expression:
var o = thisComp.layer("BLACK BOX").content("Offset Paths 1").amount;
cursor_x_motion = ease(time, 1, 2, 0, thisComp.layer("BLACK BOX").content("Rectangle 1").content("Rectangle Path 1").size[0]+o*2);
“time, 1, 2” makes my in/out at 1 sec and 2 sec.
Thanks again for your help!!