How do I transfer my website with WordPress Migrator?
Make sure that you have installed the Migrator plugin on the website that you want to copy. Go to Site Tools > WordPress > Migrator. Choose the Domain and Path to the folder in which the website should be transferred and click Generate.
Note that if you want to transfer a site to the selected domain name (not a subfolder), the path field should be left as it is. The Migration Token will appear in a pop-up and in the Manage Tokens section. Copy the Migration Token and enter it in the Migrator plugin on your website. Press Initiate Transfer and wait for the migration to complete.
You can find detailed information about the process in this tutorial.