Variables – Click or drag and drop the Name variable to use it in your caption expression. That variable resolves to the name of the attribute relationship. It is included by default, but you can delete it if you want to customize the caption.

Expression – Define or modify the expression by manually typing in the static text for the caption. The Enter key on your keyboard inserts a new line within the caption. This gives you more control over how the caption will display.

Caption – Displays the evaluated caption so you can verify what the caption will look like. This area is updated when Evaluate is clicked.

Evaluate – The caption will display under the Caption area once Evaluate is clicked. You can review the caption before accepting it.