title: How can you attach a content item as an element field of another content item via its authoring template?
body: <p>Let's say I defined a IBM WCM authoring template called <strong>"AT-Image"</strong>; it creates content item <strong>"CT-Image"</strong> that contains elements such as an <em>Image</em> of type "Image", <em>Description</em> of type "Short Text", <em>Keywords</em> of type "Text", and other fields that serve as meta for that image resource.</p>
  
  <p>Now, I need to create a content item called <strong>"CT-Article"</strong> based off from its <strong>"AT-Article"</strong> authoring template.  Let's say that "Article" item has 3 elements: <em>Title</em>, <em>Summary</em>, and <em>Image</em>.  <em>Title</em> and <em>Summary</em> are of type "Short Text".  But <em>Image</em> needs to be of type "CT-Image" and not <em>Image</em> or <em>Image component</em>.</p>
  
  <p>Is this possible Out-of-the-Box or is this something I need to implement myself via WCM API?</p>