Is it possible to link config drawings

Hi folks, another little problem(by the way thanks for theprevious help), i have one part and 2 configs and one drawing foreach config(seperate part no,s)one config is casting detail and theother is machine detail with relevant dwgs, is there any way otherthan a manual note to link the 2 dwgs i.e to show you need thecasting dwg to produce the machined article, at the moment the onlyway that seems to work is a manual note, i have had it suggested tome to put the casting part into an assembly then do the machinecuts but i do not want to go down that road, as there would partslisted as assemblies, again thanks for your helpSolidworksDrawings And Detailing