Thank you Michael.
I'll study your responses tonight.
I seem to be making a little bit of progress:-)

- Brian


So I can either convert cPlane1 to cPlane2 with a new base point, which I still do not know how to do.?
cPlane2 needs the same grid, with a new base point.

Or else, I can open a 2nd pointpicker, and feed the new base point to it by script, not by manual pick, and get the cPlane2 from the second pointpicker.ptframe.?