Modify Input hidden created with helper form cakephp 3

when I use the Form 3 cakephp helper to create the forms that is as follows:

<?= $this->Form->create() ?>

and the output is the following:

<form method="post" accept-charset="utf-8" 
action="/serappdev/preguntasalternativas/edit/1/2">
<div style="display:none;">
  <input type="hidden" name="_method" value="POST">
</div>

Well now my question is how can I modify the value of the input that is created by default.