Help: Whole document evaluation
When you set up your rubric you can specify certain elements to apply to the entire essay ("whole document" scope). Those rubric elements will NOT appear on the right-hand list. Instead they appear at the bottom of the essay:

Instead of dragging-and-dropping, you just click the rubric element button and the evaluation options will pop up:

Choose a feedback comment from the appropriate quality level column or add a new comment as needed.

Your evaluation and feedback will be stored when you click on a comment.