(1) The Recorder may, before registering a building title plan and after giving notice to such persons as the Recorder thinks fit (a) number, re-number or otherwise distinguish any flats in the building title plan; and(b) supply omissions and correct patent errors in the building title plan.(2) Without limiting subregulation (1) , the Recorder may, before registering a building title plan, amend it with the consent of (a) the person who lodged it; and(b) the town clerk of the Council.