[Plugin: WordPress MU Domain Mapping] Migrate Multisite out of sub-folder

I have tried to create a multisite for the first time and have several sites I want to run off of a single WP install.

I decided when I would create the multisite to place it in a subfolder called ‘WP’. If I had know that somain mapping would not work this way I would not have made it. Is it easy to migrate out of this wp folder? Do I just move everything out of the WP folder and then edit the wp-config.php and .htaccess files to reflect the change?

Then after this I can use domain mapping?

https://www.ads-software.com/extend/plugins/wordpress-mu-domain-mapping/