Please allow admin users to lock the cycle so that reviews after a certain date cannot be added. This will help in freezing data for calibration discussion and finalization. Changes the status to finalized or waiting for reviewer doesn't solve the purpose as after changing the status we are unable to download report of who did not complete the review and must be excluded from calibration discussion and final report. May be just one button which is once activated and then the reviewee and reviewer is unable to add anything as the cycle is closed