Restricting end user to attach documents in sap by default repository for DMS

Hi Experts,

We found our end user's are attaching file in by default SAP repo as below.

Since this repo stores data in sap database table DMS_CONT1_CD1 and its making table DMS_CONT1_CD1 to grow in GB's. So we have created a Content server for DMS and will be sending and saving Documents in Content server Repo onwards. But we can still see user are attaching documents to old & by default repo of sap "DMS_c1". Kindly help me out how to restrict end user and enable them to save the document to the newly created content server repo by name ZDMS_PRD_CONTENT.

Thanks in advance.

Prashant Naagar