Wednesday. Started reading through the developer documentation and the code in my OJS instance. First objective is to modify the Journal Setup section by adding form elements explaining the Open Review option (similar to those used for Peer Review already on that form). File is classes/manager/form/setup/JournalSetup2Form.inc.php , but that just invokes a bunch of methods to generate the page. I did find locale/en_US/manager.xml which contains all key-value pairs for text strings in the interface, and added two entries "manager.setup.openReviewPolicy" and "manager.setup.openReviewDescription". I haven't yet figured out what invokes those keys.