Hi primorge,

I did download your file, thank you very much:-).  I was able to get the red balls to be symmetrically posed to the green balls but in a top down view only. If I viewed the figure from the side and moved the green balls up and down, then did a left to right mirror, the red balls went a different direction.  With naming the links rLink1, rLink2 rLink2 and lLink1, etc, then they would have mirrored in all axis correctly.  I believe that poser software uses the r and l prefix as a means to mirror body parts down the Y axis (top to bottom) along the x axis, (side to side)  If they had a f and b prefix (Front and Back), then it could mirror down the y axis (top to bottom) along the z axis, front to back.

D