I want draw a line by snapping to a 3D point, but using only the XY coordinates of the point and using the 0 Z coordinate of the active CCS.

I thought the LGCYOSNAPZ command should do this. But it insists on using the 0 Z coordinate of the World CCS; not the current active CCS.

I don't want to use the .XY filter because I would have to use it on every point.