In order to access the WordPress dashboard of your staging area just add wp-admin or wp-login. phpto the end of your staging site URL and log in using the same credentials you use on your live site.
You can refresh the page every now and then until eventually you will see the screen shown below indicating the date and time you staging site was successfully created as well as the URL where you can access the front-end of your new staging area..
This can take anywhere from 1 minute to a lot longer than that depending on how large your site is and whether it is a single WordPress install or a WordPress MultiSite install.
Once you get logged in to your S FTP client you are free to go changing your site however you wish with no effects to the live site..
One of the awesome features that caught your eye was the ability to put your website in a staging environment for testing but now you're not so sure exactly how to go about doing that.
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