Are there instances of each field in Drupal?
The illustration of the Field UI below shows the field instances of the content type, Basic page. There are instances of the fields Title and Body. An element (i.e., an entity type or bundle) can have only one instance of each field.
How are content types defined in Drupal 7?
Fields on content items are defined at the content-type level, on the Manage fields tab of the content type edit page (which you can reach from the Content types page). When you define a field for a content type, each content item of that type will have that field added to it.
Where do I find the fields for content items?
Fields on content items Fields on content items are defined at the content-type level, on the Manage fields tab of the content type edit page (which you can reach from the Content types page). When you define a field for a content type, each content item of that type will have that field added to it.
Where do I find the fields for comments?
Fields on comments. Fields on comments are defined at the content-type level, on the Comment fields tab of the content type edit page (which you can reach from the Content types page). When you add a field for comments, each comment on a content item of that type will have that field added to it.
How to add a new content type in Drupal?
You would name your new Content Type (e.g. Contacts), define the information that you wanted to store about each contact (called Fields in Drupal), and then add those Fields (e.g. First name, last name, and mobile phone number, etc.) to that Content Type.
When do you add a field to a content type?
When you define a field for a content type, each content item of that type will have that field added to it. Some fields, such as the Title and Body, are provided for you when you create a content type or are provided on content types created by your installation profile.