How to change labels on node add/edit form inside Authoring information box? I have a Drupal 8 site with the Bartik theme. How can I change label text on node add/edit form inside 'Authoring information' box. This box contains:

-Menu settings
-URL path settings
-Authoring information
-Promotion options


I want to rename some labels and add a new input text field. The main thing I want to change is the Authoring information box and the information inside of it. Is this done with hook form alter?

:
Those are the uid and created base fields, so yes hook_form_alter() or using interface translation are your options.

To add a new element in there, you need to set the right group, from NodeForm:

&lt;?php
if (isset($form['uid'])) {
  $form['uid']['#group'] = 'author';
}