Right.... Well, I'l try to explain myself better. I have a Comercial part that originally was an assembly. I don't Like to have a full comercial part in the form of an assembly, because I wrote a small macro that Put the Item number to comercial parts automatically, but It only works well when the comercial Part is only one part. The problem is that this part (well, said a SMC linear actuator) should take many positions, depending of the configuration. So I have the rod and the body in one Multybody part, and I just add a insert/Feature/ Move/copy body every time I need a diferent position, and I create a configuration and suppress the other Move/copy. So, after a While, I have tons of Move/Copy features in my part. What I'm tring to do is only add the value of the distance I need in a Design Table that controlls only one Move/copy. THe problem is that I can't Find the dimesion or the parameter that controls the said, DeltaX, in my part...