How to restrict the list of documents for a specific page ?

Summary:

Hi Team, we have a notification built in where the line manager clicks and is taken to specific DOR - when trying to add for a particular employee they are able to see multiple dors, how can we restrict them from populating only for that specific dor page?

When we are at this page, Manager should not be able to see any other document type name at that time? Can this be done using page composer and how?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

When we are at this page, Manager should not be able to see any other document type name at that time? Can this be done using page composer and how?