Comments relating to individual customer delivery address

When a customer has multiple delivery addresses, with differing book in details, there is no where to link "notes" to a specific address. This then doesn't populate automatically (because I cant link a relevant field in report designer)

Even if I wanted to input this manually, the analysis code fields sometimes don't hold enough space to enter all information.

Currently the dispatch notes need to be printed out, written on with pen, scanned back in and forwarded on.