Annotations can be added to any widgets placed on the wireframe except those contained in Masters used on the wireframe. The widgets in Masters can be annotated while editing the wireframe of the master.
To edit an annotation, select a widget and, if it is not already visible, make the Annotations and Interactions pane visible to the right of the wireframe.
The fields in the Annotations and Interactions pane will be enabled if the widget can be annotated. Click in the fields to begin adding or editing annotations. It is useful to enter a value for the Label field in the Annotations and Interactions pane for defining interactions involving those widgets.