ext_tables.php

<?php
/**
 * @author Carsten Rose <carsten.rose@math.uzh.ch>
 */

if (!defined('TYPO3_MODE')) {
    die ('Access denied.');
}

\TYPO3\CMS\Extbase\Utility\ExtensionUtility::registerPlugin(
    'IMATHUZH.' . $_EXTKEY,
    'Qfq',
    'QFQ Element',
    'typo3conf/ext/qfq/ext_icon.png'
);

/*
 * The type name is generated by combining the extension key and plugin name, all lowercase and concatenated with `_'
 */

$GLOBALS['TCA']['tt_content']['types']['qfq_qfq'] = array(
    'showitem' => 'hidden, CType, header, header_position, bodytext;;;nowrap, layout, deleted, starttime, endtime, colPos, spaceBefore, spaceAfter, fe_group, header_layout, sectionIndex, linkToTop, section_frame, sys_language_uid'

);