This is superb, I followed your instructions for the Beam option and it works! In regards to the anchor point, I thought it had some influence on how the Beam’s starting point would locate itself on the null.
Thanks a bunch for your quick help.
Please would you be able to explain what the expressions in this thread meant, in very basic words?
-parent.transform.rotation
s = 100*transform.scale[0]/parent.transform.scale[0];
[s,s]
L = thisComp.layer(“Null”);
L.toComp([0,0,0])