How do I add additional N&A books to the address lookup dialog?

In your notes.ini file, you should modify the line that reads "Names=NAMES.NSF" to read "Names=NAMES.NSF,MYNAMES.NSF". This will cause Notes to look up names in both the NAMES and MYNAMES N&A books.

Applies to Notes Versions: 3 4 4.5 4.6 5