I have a question about routing, I could be doing this wrong however every time I make a model with the piping I end up with 2 assembly files, the first one is usually a flange and the routing sub assembly and the second assembly is the routing sub assembly.

Now I know you can make a virtual component which saves the file internally which eliminates the need for having two assembly files however the help mentions :

Using virtual components is useful for developing concept work in assemblies, but it is not recommended. This technique limits data management and reuse.

Which basically says not to use virtual components, is there a way to just have the routing sub assembly file only instead of having to have to separate assemblies just for routing?