is there a nice trick to deleting the duplicates quickly and efficiently?
See this knowledge base article. If I were to write the script, I'd use a variable where this script uses a global field, but that's a very minor difference and either approach works: http://help.filemaker.com/app/answers/detail/a_id/3441/kw/delete%20duplicates
Awesomeness, I will try that script.
Now...any trick to changing the "delete" button? :)