"Copies" in the Settings dialog governs how many boards of each board number in the from - to range that you have set.

You will be alerted when:
- the next board number in sequence has been completed. That board number will be skipped and the next not yet completed board no. will follow.
- all copies of all boards in the range have been duplicated- you leave an event where not all duplicates have been completed.

Note that you can use "Single duplication" if you need to sort one board again for some reason.

You should increase the number of copies in Settings if you need another set of boards.