Part Configs. in assemblies

Hello;

     Maybe somethings changed since I did this, but I have a part with 3 different configurations. In the assy. I want to make 3 different configurations, each showing the part in one of it's 3 configs, that are already done. I think you used to r.c., & select component properties, but that doesn't seem to be coming up.

    Any help is appreciated in advance;

Thanks,

Rob_D SW 2012 sp1.

SolidworksConfigurations design Tables