Assembly name into part property feature

Hello,

I'm looking for a certain SolidWorks built in feature. What I'm looking is a way to link an assembly's name into its part's file properties. 

So basically something similar to \\\$PRP:"SW-File Name(File Name)" , but for the assembly the part is contained into.

I assume this is not possible so this is a shot in the dark.

Thanks,

SolidworksParts And Features