api/manage/platform_setting.php

<?php
return array
(
    'update' => array
    (
        'field'    => array
        (
            'name' => array
            (
                'type' => 'textarea',
                'autosize' => array('minRows' => 2),
            ),
            'key' => array
            (
                'type' => 'textarea',
                'autosize' => array('minRows' => 2),
            ),
        ),
        'drag' => 'sort',
    ),
);