add_action( 'after_setup_theme', function () {
    remove_action( 'tgmpa_register', 'mb_aio_load_free_extensions' );
}, 20 );

add_action( 'tgmpa_register', function() {
    $plugins = array(
        array(
            'name'     => 'Meta Box',
            'slug'     => 'meta-box',
            'required' => true,
        ),
        // Add more free extensions here
    );
    $config  = array(
        'id'          => 'meta-box-aio',
        'parent_slug' => 'meta-box',
        'strings'     => array(
            'notice_can_install_required'     => _n_noop(
                // translators: 1: plugin name(s).
                'The Meta Box AIO plugin requires the following plugin: %1$s.',
                'The Meta Box AIO plugin requires the following plugins: %1$s.',
                'meta-box-aio'
            ),
            'notice_can_install_recommended'  => _n_noop(
                // translators: 1: plugin name(s).
                'The Meta Box AIO plugin recommends the following plugin: %1$s.',
                'The Meta Box AIO plugin recommends the following plugins: %1$s.',
                'meta-box-aio'
            ),
        ),
    );
    tgmpa( $plugins, $config );
} );