Is there a way to push the CC and BCC fields in a submit of a new e-mail conversation? It seems the CC and BCC fields were introduced on May 10th: May 10, 2023 - Genesys Cloud Resource Center.
The CC and BCC fields would be populated by the external client that's sending an email to your monitored inbox. The feature you're referencing is just saying that information is now visible in the UI when viewing an email that has those fields.