Content split module split the content from one content type to another.
Note: This module is not copying any data. It’s not using any kind of migration.
Description: This module has a configuration page “/admin/config/system/content_split/content_split_settings” where you will find the form to perform the content split. It also has the help page “/admin/help/content_split”.
You will probably need this module for one-time usage.