I have many groups of three constant gain circles on a Smith Chart corresponding to three gains (=10.412, 9.912, 9.412), formed using Gpcircle. That is, on my Smith Chart there is a series of such groups as shown in the attachment. I wish to replace all the circles of each gain with a contour so that I eventually get three contours on the Smith Chart, one for each gain (i.e. trace all the 10.412 gain circles with a contour, trace all the 9.912 circles with a 2nd contour, and so forth). How do I do that?