<?php
if (!defined('TYPO3')) {
	die('Access denied.');
}
$additionalFields = [
	'copyright' => [
		'exclude' => true,
		'label' => 'LLL:EXT:grossmarkt/Resources/Private/Language/locallang_db.xlf:sys_file_metadata.copyright',
		'config' => [
			'type' => 'input',
		],
	],
];
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTCAcolumns(
	'sys_file_metadata',
	$additionalFields
);

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addToAllTCAtypes('sys_file_metadata',
	'copyright',
	'','after:title');