[DerekM]

Are you wondering how to set the data in additional columns? Or are you looking for a script that takes a blank document and adds the columns in?

If you're copying to a document that already has the columns set up, all you need to do so set column cell is something like:
set value of cell "columName" of theRow to myData

to add a column in you can do:
make new column with properties {name:"new column"}