Pdeditor_XH facilitates viewing and editing the page data in the back-end of CMSimple_XH. It is meant as an alternative to editing the pagedata sections in content.htm manually, so it should be used by experienced users only, who know exactly what they are doing. It is not a tool for unexperienced users! These should manipulate the pagedata via the interfaces provided by the respective plugins only (often a tab above the editor).