How can I edit a content type?

To edit an existing content type:

  1. From the Structure menu, choose Content types.
    administer content types
  2. Click Edit for the content type you wish to edit.
    edit content type
  3. On the Edit tab, make changes to the name, description or options for this content type.
  4. Additional tabs allow you to add or edit fields, change display options and content options.

For more information see Drupal 7 Essentials at lynda.com. The following video chapters are most appropriate - Adding fields to content types, Exploring field types and options, and Adjusting field display.