Is this feature enabled? I need to transfer from Sandbox to Production? How do I do this?
You'll need to open a support ticket to enable this.
This is a very old post but I referred it yesterday and learnt that Marketo Support can help here. This is a functionality available upon request, without additional cost to one's subscription, it is available in bi-directional or single-direction way. Based on need, you can request to get this functionality enabled for copying assets from (Prod - Sandbox) OR (Sandbox - Prod) OR (between multiple sandboxes).