Note: This element is only for use with the upcoming Theme Builder. This element is only available when editing Theme Builder templates.

The Post Title element allows you to insert the title from the post into your post dynamically. This means you can use this element on your post or page templates and the title of the post/page as set in WordPress will be shown.

You'll find the Post Title element under the "Post" elements section of the element sidebar. 

Click and drag that element to where you want in the template you are editing, and you'll then see the element toolbar and options, which are mostly the same as the Headline Element in the OptimizeBuilder.