mirrored assemblies

Hey, all you "bilingual" folks, I need a translation... (by bilingual, I'm referring to those who speak both SolidWorks and Inventor).  Does anyone know if SW has a feature like Inventor's "Derived Component"??  I have an assembly which has a "this side" and "the other side", which are mirror images of one another, but all the components are the same parts -- just assembled backwards.  Is there a function to make the mirrored part or must I assemble it manually?  Thanx.

SolidworksParts And Features