> Please login to your Drupal admin panel
> Please click on the Menu from the top menu bar
> Please click on the Structure option from the second menu bar
> Please click on click on the Content Types
> Please click on the Manage field button beside the content you want to work with
> Please enter the comment field a name where you see Add new field and select the Comments option from the Field Type dropdown
> Please click on the Save button to save the settings