How to make document of records flexfields visible on Pending actions

Summary:

I have used document of records for certification and need to capture few additional fields as part of business requirements hence added them as flexfields but these additional fields do not show up when you click the pending actions to provide the information.

The same is visible when I use the document type and document of records standard functionality

Content (required):

The Employee would be required to submit the proof using Pending action and then go to document of records page and again submit the same details and additional details that are configured as part of DOR

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