How to edit multitv parameter in modx evo?

Question

MODX

The site in the modx evo engine has a parameter multitv

Which allows you to select the fields that are displayed on the site.
The add-list-params.config.inc.php file has the following code:

<?php
$settings['display'] = 'vertical';
$settings['fields'] = array(
  'key' => array(
    'caption' => 'Наименование товара',
    'type' => 'dropdown',
    'elements' => '@SELECT pagetitle, id FROM [+PREFIX+]site_content WHERE published=1 AND deleted=0 AND parent=85 ORDER BY pagetitle,id ASC'
  ),
  'value' => array(
    'caption' => 'Значение параметра',
    'type' => 'text',
    'width' => '580'
  )
);
$settings['templates'] = array(
  'outerTpl' => '[+wrapper+]',
  'rowTpl' => '
[+value:ne:``:then=`
<tr>
  <td></td>
  <td>[+value:htmlentities+]</td>
</tr>
`+]'
);
$settings['configuration'] = array(
  'enablePaste' => TRUE,
  'enableClear' => FALSE,
  'csvseparator' => ','
);

I want to add a couple more fields to select how to do it? Can this be done from the admin panel or is it just adding fields to the table manually? I didn't find anything on the internet about this.