Example

$configuration = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
    \B13\Container\Tca\ContainerConfiguration::class,
    'demo_container',
    $languageFile . 'CType.I.demo_container',
    $languageFile . 'CType.I.demo_container-plus_wiz_description',
    [
        [
            [
                'name' => 'Elements',
                'colPos' => 200,
                'allowed' => ['CType' => 'kwicks_element'],
                'collapsed' => true,
                'minitems' => 1,
                'maxitems' => 5,
            ]
        ]
    ]
);

$configuration->setGroup('ew_fischer');
$configuration->setIcon('content-card-group');

GeneralUtility::makeInstance(Registry::class)->configureContainer($configuration);