Hi rikj
Yes, it's quite possible; each batch import takes me a few hours to prepare and run so its only really suitable for large batches, typically a hundred or more.
The script checks for duplicates insofar as it's possible (name and close lat/long) but I appreciate people checking their lists for duplicates as well beforehand.
I'm away for a week, if you want to do a batch import I'll happily prepare and send a spreadsheet in a couple of weeks time? The spreadsheet has to be in the format the importer expects, and with certain minimum information.
my orders are to sit here and watch the world go by