Description Area – Use this main section to edit the description of the data. If you want multiple separate lines of text, use the Enter key on your keyboard to being each new line of text.  

Data Details – General information about the data you are working with appears in the first section of the window. This is a read-only section and the content varies by the type of data you’re viewing information for (level, dimension, attribute relationship, measure, and so on).

Save – Click to save the description and close the window.

Cancel – Click to close the window without saving your description edits.