Want to include a Content Inventory Report in Incident Workspace with run-time selectable filter on

Summary

We want to include a Content details Report in Incident Workspace with run-time selectable filter on custom field from incident workspace (docId). We could not find a way to join this

Content

We could not find a way to join this with Incident Table and hence create a run-time filter based on custom field docId from Incident workspace.
 

We created a report that included details related to content(like Author,Created date,Modified Date etc) and followed the below documentation to show reports based on unique identifier for the primary type of record in the workspace.
https://docs.oracle.com/cloud/august2016/servicecs_gs/FAMUG/Chunk231883097_d105.htm#ah1137046