We understand that it is a function to synchronize between servers, except only for necessary or unnecessary portions. For example, if you set a specific user to "Who can read this document" in the document properties, the documents will not be replicated to the destination server.
Customer wants to replicate the entire database to the backup server. Therefore, they would like to add the ability to replicate all elements of the database (documents, design elements, etc.) on the server side, regardless of the database settings configured on the user side.