ext_tables.php

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

$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['flux']['setup'] = unserialize($_EXTCONF);

$TCA['tt_content']['columns']['colPos']['config']['items'][] = array(
	'LLL:EXT:flux/Resources/Private/Language/locallang.xlf:tt_content.tx_flux_container',
	\FluidTYPO3\Flux\Service\ContentService::COLPOS_FLUXCONTENT
);

$GLOBALS['TCA']['tt_content']['ctrl']['useColumnsForDefaultValues'] .= ',tx_flux_column,tx_flux_parent';

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTCAcolumns('tt_content', array(
		'tx_flux_column' => array (
			'exclude' => 0,
			'label' => 'LLL:EXT:flux/Resources/Private/Language/locallang.xlf:tt_content.tx_flux_column',
			'displayCond' => 'FIELD:tx_flux_parent:>:0',
			'config' => array (
				'type' => 'select',
				'renderType' => 'selectSingle',
				'items' => array(
					array('', '')
				),
				'default' => '',
				'itemsProcFunc' => 'FluidTYPO3\Flux\Backend\AreaListItemsProcessor->itemsProcFunc'
			)
		),
		'tx_flux_parent' => array (
			'exclude' => 0,
			'label' => 'LLL:EXT:flux/Resources/Private/Language/locallang.xlf:tt_content.tx_flux_parent',
			'displayCond' => 'FIELD:tx_flux_parent:>:0',
			'config' => array (
				'type' => 'input',
				'readOnly' => TRUE,
				'foreign_table' => 'tt_content',
				'foreign_table_where' => "AND tt_content.pid = '###CURRENT_PID###'",
				'default' => 0,
				'size' => 1,
				'maxitems' => 1,
			)
		),
		'tx_flux_children' => array (
			'exclude' => 0,
			'config' => array (
				'type' => 'inline',
				'foreign_table' => 'tt_content',
				'foreign_field' => 'tx_flux_parent',
				'foreign_sortby' => 'sorting',
				'appearance' => array(
					'collapseAll' => TRUE,
					'showPossibleLocalizationRecords' => TRUE,
					'showAllLocalizationLink' => TRUE,
					'showSynchronizationLink' => TRUE,
					'enabledControls' => array(
						'new' => FALSE,
						'localize' => TRUE,
						'sort' => FALSE,
						'hide' => TRUE
					)
				),
				'behaviour' => array(
					'localizationMode' => 'select',
					'localizeChildrenAtParentLocalization' => TRUE,
				),
			)
		),
	)
);
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addToAllTCAtypes('tt_content', ',--div--;LLL:EXT:flux/Resources/Private/Language/locallang.xlf:tt_content.tabs.relation,tx_flux_parent,tx_flux_column,tx_flux_children;LLL:EXT:flux/Resources/Private/Language/locallang.xlf:tt_content.tx_flux_children,,,');


\FluidTYPO3\Flux\Core::registerConfigurationProvider('FluidTYPO3\Flux\Provider\ContentProvider');