This image shows the Log Message page. The message Expression is valid and ready to use is displayed at the top. At the top left is the Inputs section. The View list, Filter icon, and Detach icon are displayed. Below this is the Source section. The Find field is displayed to the right. Below this is the source tree of elements. The element message is selected. To the right is the > arrow. To the right is the Expression field. Below this is the Expression Summary field.