Can I use configurations for multiple sheet metal materials?

I have a battery tray that I want to run FEA simulations on for aluminum and steel, as well as various thicknesses, but I can't seem to do this with configurations.  It seems like this is the type of thing that configurations would be perfect for, but I can't figure it out.  I'd rather not do this with a bunch of separate part files.  Also, I'm fairly new to SW (July).

Thanks in advance,

John

SW2009 4.1

SolidworksConfigurations design Tables