ext_tables.php

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

// Remove the old "CODE", "Layout" and the "recursive" fields
$GLOBALS['TCA']['tt_content']['types']['list']['subtypes_excludelist'][$_EXTKEY . '_pi1'] = 'layout,select_key,pages,recursive';

// Add plugin and datasets
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addPlugin(['TER SOAP Server', $_EXTKEY . '_pi1']);

// Add static configuration files
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addStaticFile($_EXTKEY, 'resources/static/', 'TER Server');