cpi oldtgc newtgc
This command is a specialized copy command and is designed to be used when one is "running wires" in a description. The object being copied must a cylindrical solid (TGC). The following occurs when cpi is used: first the cylinder ("oldtgc") is copied to "newtgc"; then "newtgc" is translated to the end of "oldtgc"; then "newtgc" is displayed; and finally, MGED is put in the SOLID EDIT state with "newtgc" as the edited solid.