When you have created and validated website content and targeting content in your staging environment (Experience Manager), you need to publish the content to your public-facing websites.
Copying Promotions Copying creates a duplicate of a Promotion and copies it to another Promotion List. Use Copy to to port Promotions from a staging website to a live website.
Copying Experiments Copy to creates a duplicate of an Experiment and copies it to another website. Use Copy to to port Experiments from a preview website to a live website.