Hi all, There is no warning or notice saying that you need the M1/2 plugin to make the M3 plugin work because it simply is not true. The plugins work regardless of the "sex" of the figure. With the base plugins, you can convert V1/2->V3 and back... Add the M3 plugin and you can now convert V1/2->M3->V3 and back... For each figure that you want compatibility for, a plugin is needed. Some plugins (like the M1/2/Steph one) support several different figure simply because those figures all use the same mapping. The pricing structure is based purely on the time involved to create the plugin. So far the M1/2/Steph plugin has by far been the most complex to develop. cheers, Steve