Outline Pane
The Outline pane displays a general tag overview of the currently open document. The pane is available by default for DocBook, TEI, and XHTML documents, but it is possible to configure other frameworks to make it available for those particular types of documents.
The pane is synchronized with the main editing area, so when you make a selection in the editor, the corresponding nodes are highlighted in the Outline pane. Likewise, if you double-click a node in the Outline pane, the cursor will be placed in the corresponding element in the main editor.
The benefits of its functionality include:
    - It offers a quick way to navigate through the document.
- It gives you insight about the location of your modifications.
- It shows the hierarchical dependencies between elements.
- It makes it easy to visualize the XML structure.
- It displays nodes that are filtered by a DITAVAL file as grayed out to make the filtered nodes more recognizable.
Display Modes
The Outline pane includes two different display modes that can be
        selected using the drop-down menu at the top-right of the pane. The possible display modes
          are:
    - Contents - Displays the information in the pane like a table of contents.
- Structure - Displays the information in the pane as a general tag overview of the current XML document.
Contextual Menu Actions
The following actions are available in the contextual menu of the Outline pane:
 Edit
                Attributes Edit
                Attributes
- Opens the Attributes tab in the panel on the right side of the screen where you can add or edit attributes.
- Append Child
- Displays a list of elements that can be inserted as a child of the current element.
- Insert Before
- Displays a list of elements that can be inserted before the current element, as a sibling.
- Insert After
- Displays a list of elements that can be inserted after the current element, as a sibling.
 Cut Cut
- Cuts the currently selected node.
 Copy Copy
- Copies the currently selected node to the clipboard.
 Delete
                Element Delete
                Element
- Deletes the currently selected node.
 Rename
                Element Rename
                Element
- Opens a content completion window where you can choose an element to rename the currently selected node.
