You want to use an existing product costing and offer it in a different season with a new Product ID
Important: Please note, if you make a product visible from a previous season and change the PRODUCT ID, this will change the PRODUCT ID across all seasons and documents
Make the Product you wish to amend visible in the current season
... either by Set Season Visibility page
For more information on Set Season Visibility page
... or by removing "Visible" filter, searching for the Product and selecting Seasonal Status - Visible within the Product
Tip: Removing this filter will show you all Products active across all seasons