Create and fix cable 3D

Now, When I rout cable 3D, it made only one assembly, so when I add new cable in project and after that I rout cable 3D, all the old cables will recreate. I do not want this, because after I create cable, I will fix by hand; but when add new cable and rout, It will recreate and I must refix. So I want when create the new cable, the old cable will not recreate. How? Anyone know how to do that? Thanks a lot.

SolidworksElectrical