The review panel is yours to shape
The fields a reviewer fills in on the REVIEW tab are not fixed. Every project decides which of the built-in fields to show, whether they are required, and which extra fields to add — a responsible department, a target date, a checklist, a figure. In Community Input Mechanism the panel carries three project-specific fields below the standard ones: RESPONSIBLE DEPARTMENT, TARGET RESOLUTION DATE and URGENCY FLAG.
Values entered here are saved on the case, appear in the review history and can be exported with the case data, so they are the right place for anything you want to track consistently across reviews.