api/manage/account_setting.php

<?php
$account_id = Dever::input('set')['account_id'] ?? 0;
if (!$account_id) {
    $account_id = Dever::input('field')['account_id'] ?? 0;
}
$account = Dever::db('account', 'api')->find($account_id);
return array
(
    'update' => array
    (
        'field'    => array
        (
            'platform_setting_id' => array
            (
                'type' => 'select',
                'option'     => 'Dever::call("api/app.getSetting", '.$account['platform_id'].')',
                //'remote' => 'api/manage.getSettingName',
                //'remote_default' => false,
            ),
            'value' => array
            (
                'type' => 'textarea',
                'autosize' => array('minRows' => 2),
            ),
        ),
    ),
);