You can copy your Managed WordPress site via the nvArea from the live site to staging or vice versa.
Typically coping your staging to your live site is done after developmental work is done on the non-live version of the site and you wish to implement the new changes.
To do this, once in the nvArea, click on Hosting Services, Manage Hosting.
Click on your Hosting account in the center of the page.
Once into your account, click on the “Manage Instances” tab at the top, and click on the green Manage button to the right of the domain name.
You will then be presented with a series of tabs, one of which is “Staging” here you can choose to copy to or from staging.