Share 'Filling Multiple Molds'

This is probably a stupid question but I thought I'd run it by you experts anyway! Is there any reason why you couldn't fill multiple molds at one 'sitting'? I mean, assuming you're willing to use the same chocolate could you fill - i.e to create the initial outer shell - scores of different molds in one go? Then you could just reach for them as and when you need them, which presumably could sav…