How to have balloon reference non-geometry part in assembly drawing.

I am using SW2014 SP5.

A coworker asked a "how to" and I can't seem to come up with the answer.

I am trying to have a balloon reference a part that does not have any geometry. This is an externally-saved part file that represents some adhesive.

I fully expected to see the "non-visible" components list in the balloon property manager. But this seems to only work for part files saved internally to the assembly.

Your help is appreciated.

Thanks,

Daen

SolidworksDrawings And Detailing