The Tree view is composed by two parts: the menu bar and the tree view area:

The menu bar

It groups some actions under the main buttons:

• the Filters for issues and links data
• the Auto-expand/collapse one entire level actions
• the More… menu with additional capabilities

By default, the first level is automatically loaded and expanded: Depth: 1
The issues are painted with white color for the background and their links children are grouped by link type with gray background color:

Linked issues are grouped by their link type and direction. Links nodes are painted in gray whereas issues are painted in white.

The tree content

The tree content is dynamic. The users can expand/collapse any node (link or issue) to show/hide it. By default 1 depth level is loaded. However the user can increase the auto-expand value up to 4 levels.

In addition, the users can also apply filters on data to put the focus on the relevant only. These  are the filters supported:

• the link direction icon (inward or outward)
• the issue key (with a link to the Issue Detail View on JIRA).
• the issue priority icon
• the issue status (lozenge or icon accordingly with the JIRA version)
• the issue summary text
• the issue work progress bar
• the Agile sprint icon (if Agile is installed)

By moving the mouse over the icons and texts, tooltips are brought up showing additional information:

The link nodes display the link name and their tooltips show the link type.