I want to visualize following command

sureg(m1 x)(m2 x)(y1 m1 m2 w m1w x) (y2 m1 m2 x)

I can't analyze the latterpart where y is moderatedby w so I tried to visulize.

But the graph shows all the relationsnhips including the one between m1 and x1.

I want to specify y1 as y axis.

Thank you.