CSVGrab using it to consolidate duplicate entries and add to multiple categories

Say I have a bunch of weblog entries that I need to import via CSVGrab.

Some of items in the CSV file are duplicate entries, but belong in multiple categories (like a business directory where joes golf business provides ‘golf lessons’ and ‘golf equipment’).

In the CSV file there are 2 seperate rows for Joe’s Golf. One for the category ‘golf lessons’ and another for the category ‘golf equipment.’ Is there a way to tell CSVGrab to recognize that it’s a duplicate entry and to only add the entry to an additional category?

Thanks

[Mod Edit: Moved to the Plugins: Discussion and Questions forum]