Does anyone know how to duplicate a range of records?

Set up a portal with the records to duplicate, including a 'timestamp' to filter FOR prior times to the loop start (which is set as a local global) which duplicates each row.

This will cause all kinds of havoc with unique identifiers that aren't really unique. Unless you are using some kind of timestamp+variable for the unique identifier.

Reply here for suggestions and comments

Export those records, then import them....

same problem with unique record id's UNLESS you have a robust scheme.