Bubble Callouts

Hello

I am using bubble callouts in drawings to pullout custom properties (from custom property tab) from the model.

However if I have an assembly(1) within an assembly(2) I do not seem to be able to call up the custom properties of the assembly(1) only of the individual parts which make up the assembly(1). is there away I can call up the assembly(1) custom properties?

I am using: \\\$PRPMODEL:"Supplier" : \\\$PRPMODEL:"Reference No."
\\\$PRPMODEL:"Description" \\\$PRPMODEL:"Description 2"

which obviously references the part model but i dont seem to be able to fins away of selecting the assembly model

Cheers for any help

Chris

SolidworksDrawings And Detailing