Stage WordPress with the WordPress Toolkit – cPanel

Login to cPanel.
Tutorial: login from the Client Area or the direct link.

Find the Domains section and click the WordPress Toolkit link.
or
In the search bar at the Top, type WordPress Toolkit and click on the result.

Locate the WordPress Installation for which you want to create a staging site, and then click Clone.

Location
Target
– Create subdomain
or
– Use existing domain or subdomain – choose from the drop-down menu. Use a new directory or leave it empty to use the root directory.

Database
Name
– leave as it is
or
– type the new name in the Name text box

Click the Start button.

WordPress Toolkit begins cloning the site.
When the cloning is complete, click the Close button.

You now have a copy of your WordPress installation, and you can use it for testing and development.
To know the difference between WordPress Installations, You can put the label STAGING on the website in development, as shown below.

When finished with the testing or redesigning process, you can now copy the staging site from development to the original one.
Select the staging WordPress installation and then click the Copy Data link.

The Copy Data Window opens.
Location
– select the destination site. 
Choose the original site if you want to push the staging changes to the original site.
Data to Copy
– select if you want to copy files, the database, or both.
Database Tables
– select if you want to copy specific tables, new tables, or all tables.

Create a restore point
– check to create a restore point.
– leave unchecked if you don’t want to create a restore point.
A restore point enables you to revert the copied data if the site does not work correctly.

Click the Start button.

Select the staging WordPress Installation.

Click the Remove button on the top of the page.

Click the Remove button once more to confirm.