legend in "Fit y by x"
is it possible to create a legend in "Fit y by x" similarly to how it's done in "graph builder"? I know I can do that using "Row Legend..." but it is not doing what I want:let's say I have assigned to the rows in my table, 4 different marker sizes and shapes to identify 4 different groups which name is in the column "core". In "Fit y by x", I creat a new graph and go in "Row Legend..." and select ...