The following actions are available in the 
Settings menu on the Outline view's
toolbar:
Flat presentation mode of the filtered
results- When active, the application flattens the filtered result elements to a single level.
Show comments and processing
instructions- Show/hide comments and processing instructions in the Outline view.
Show element name- Show/hide element name.
Show text- Show/hide additional text content for the displayed elements.
Show
attributes- Show/hide attribute values for the displayed elements. The displayed attribute values can be changed from the Outline preferences panel.
Configure
displayed attributes- Displays the XML Structured Outline preferences page.
The upper part of the view contains a filter box which allows you to focus on the relevant components. Type a text fragment in the filter box and only the components that match it are presented. For advanced usage you can use wildcard characters (*, ?) and separate multiple patterns with commas.