MagazineNP theme have prebuild starter sites templates. You can simply import those templates easily with one click. You can install mantrabrain-starter-sites plugin from wordpress.org and go to appearance -> starter sites.
Just activate the theme and click on get started button ( This will install mantrabrain-starter-sites plugin automatically)
Then, you can see Starter sites menu under appearance main menu.
You can select best demo ( starter sites ) from here and can import just clicking on import button from the template lists. It may take some time to import your site. So please wait for sometime.