Select Specific address

Hi,

I am trying to achieve something and I really don't care if I have to do it via scripts or if it is possible to do without.  It should be quite simple but it is made all the more difficult because it involves ADDRESSES.

My requirement is simple, I am creating a VRMA shipping label.  What I need is the ability to identify a specific address in each vendor with a Label "Returns Address", to be clear I cannot us the shipto or billto fields as this will be a different addresses.

Does anyone have any ideas either using custom fields or some kind of search function in scripts, I am quite baffled by how the whole address system works in netsuite.