Exploding *sub*-assemblies

I am making an Exploded View of an assembly.  It has a few subassemblies within it, and I want to separate those parts as well.  It seems like when I try to do this, the Explode feature treats the subassembly as one part. Is there a way to Explode these parts individually?  Or is the only way to Dissolve the Subassembly so that they become individual parts?

thanks

SolidworksAssemblies