With the Field chooser you can add data to your Displays and/or apply a specific filter to an Angle, a Display, or a Dashboard. The Field chooser is available in the following cases:

Similar to the Search results page, the Field chooser has a filter pane on the left, a search bar and mode selector at the top, and a search results pane on the right. It also uses the same icons to indicate attributes, for example, the field type, starred status, and origin.