In the “Roadmap” menu, after displaying the table, select one or more product(s) using the check marks to the left of the table, then click on (visible if permission is enabled for user role).
A new pop-up appears:

On the first line, the number of products affected by the copy is indicated.
The “Circuits” filter contains all the circuits on the platform. By default, the circuit selected in the Roadmap is selected in the filter.
The “Source Period” list contains the period selected in the Roadmap filter.
The “Destination Period” list contains future periods.
Once you have made your choices, click on “Apply selection”.