Save an Assembly as a .SLDPRT File

Is there anyway I can save an Assembly as a Part (.SLDPRT)and keep the part Parametric to the Original Assembly?

I want to use that assembly as reference, but it would be perfectif I could save it as a part, and that the part file undatedwhenever ther original assembly was update. Any Ideas, compents,alternatives?SolidworksAssemblies