Change staging to live site

Hi, i am testing this plugin with the idea to show it to a students of WordPress to help them to make changes to a staging site. The idea is to make a step by step video in spanish.

It is really fantastic and it seems to be easy to use. In fact my first test have been very easy. I am also a big fan of duplicator plugin.

Well, my questions is if there is any easy way to change the staging site to a live site. Imagine that you make a lot of changes in the staging site, and you like it a lot so, you want that your staging site becomes your live site.

Is there any way to make it? Or the only way is to replicate on the live site all the changes of the staging site.

I hope you can help me.

Have a good day.

Regards.