Question: When we want to copy the finished website to another domain, how we should do it?
Answer:
You can use the backup/restore function inside the builder.
In the top right corner, click on the green "Publish" button. Then click on "Backup/Restore" to open the dialog to Backup your website. This file will be stored on your computer.
On the new domain you can use the same method, click on the green "Publish" button. Then click "Backup/Restore" to open the dialog to Restore your website from the file that you previously stored on your computer.