InsertEdit insertEdit = modell.insert("org.eclipse.2", "value");
InsertEdit insertEdit = modell.insert("org.eclipse.nls.2", "value"); insertEdit.apply(props);
    public void testInsertIntoDoc() {        String props =             "org.eclipse.1=value\n" +            "org.eclipse.3=value\n";        PropertyFileDocumentModell modell = new PropertyFileDocumentModell(new Document(props));                InsertEdit insertEdit = modell.insert("org.eclipse.2", "value");                assertEquals("org.eclipse.2=value\n", insertEdit.getText());        assertEquals(20, insertEdit.getOffset());    }