tt_content.menu_subpages =< lib.contentElement
tt_content.menu_subpages {
    templateName = MenuSubpages
    dataProcessing {
        10 = TYPO3\CMS\Frontend\DataProcessing\MenuProcessor
        10 {
            special = directory
            special.value.field = pages
            levels = 3
        }
    }

    stdWrap {
        editIcons := appendString(header, header_layout, pages, layout)
    }
}