Page currentPg = project.getPageById("4711");
currentPg.startSetElementValues();
// 2. step
// remember new page element values only
currentPg.addSetOptionListValue("templateElementName", "value");
currentPg.addSetStandardFieldDateValue("templateElementName", new ReddotDate());
currentPg.addSetStandardFieldNumericValue("templateElementName", 20);
currentPg.addSetStandardFieldTextValue("templateElementName", "text value");
currentPg.addSetStandardFieldUserDefinedValue("templateElementName", "value");