Assemblies, configurations, design tables, and linked custom properties

Okay I have an assembly with 4 parts. One part has many configurations that I would like to be able to switch between easily in my current work flow. I would like to be able to select the desired configuration from a list in the custom property tab. I was able to link the list to the part's design table excel file. Bam done.

But how can I link the custom property to the configuration of the part in the assembly?? Is this possible? I noticed that the display states are linked to the configurations, but I don't know how to call upon them or if that is even possible.

Thanks in advance!

SolidworksConfigurations design Tables