Is there a way to open the opposite hand version of large assembly(including sub assemblies) as another assembly ?

I have a large assembly which has no.of parts and sub asemblies.I want to create opposite hand version of the assembly and open the mirrored version as new assembly.

Generally when we use insert,mirror components;all the components being mirrored showing the both right and left hand version.Hope there should be a way for this in solid works.

SolidworksAssemblies