> 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 go to the Structure menu page > click on the Content Types
> Please Click on the Manage fields link beside the content type you want to manage
> Please click on the Edit link beside the Comment Settings
> Please go to the Comment Form Settings and Comments per page drop-down box and select the number from drop down
> Please click on the Save setting to save it
