Display all Files in all ChangeSets on work item

Hello...

I need to change the com.ibm.team.workitem.editor.default to display a list of Repository Files that are contained in ChangeSets attached to the work item. That is, when a user views a work item in the web UI (or any UI, really would be nice) the user wants to see a list of files that changed (probably on a new tab or layout section).

This would be the distinct union of all "Changes" in every Changeset attached to the Work Item.

If not possible in Process Configuration, what are my options? Is there a way to do this in the API?

Thanks...
Travis