Traceability Report
Next to the properties of a file, a traceability report is available for every file (not for folders). It provides a complete backtrace of that file, i.e., all actions and files used to produce it.

Actions for which you can alter the QC status have a little pen icon at the beginning of the row. By clicking on it, the 'Action Dialog' appears and you can edit the QC status if needed.