NHC Carrying forward calculated NHC rating to a new series

We are using NHC in internal mode to dual score with PHRF. We are at the end of the first series. What is the way or best way to carry over the last calculated NHC ratings to the new series?

Hi EG Dougall
Make a copy of the first series and rename it for the new series. Then delete all races except the last one.
Also make any changes that might be required to Series properties, for example change name of series, and to Scoring system.

Kind regards,