Since the 4.2.0 version just the same views for linked issues (Hierarchical tree and Matrix) can be added to Jira Dashboards and Confluence pages via these  gadgets:

• Links Hierarchy View
• Links Matrix View
• Links Pivot Table View (since version 6.0.0), renamed to "Links Dependency Table View" (since version 7.0.0)

Links Hierarchy View gadget

Simply provide the Issue key for the root element in the hierarchy:

Links Matrix View gadget

And the filter IDs for rows and columns in the matrix:

Since version 7.1.0 changes have been made to the gadgets "Links Hierarchy View" and "Links Matrix View".

Links Matrix View gadget

The matrix can be set in editable or non-editable mode.

• Editable mode: works in a similar way as before, except that now you can indicate to the matrix what types of links you want to see when it is displayed.
  How does it work? Just work normally. Every time you modify "Links Filter", the filters will be automatically stored if you are the owner of the dashboard or have permission to edit it.
  
  
• Non-editable mode: "Links Filter" will not be displayed and you will not be able to create or delete links from the matrix.

Links Hierarchy View gadget

The hierarchy can be set in editable or non-editable mode.

• Editable mode: works in a similar way as before, except that now you can indicate to the hierarchy what filters and autoexpand you want to see when it is displayed.
  
  
  
  How does it work? Just work normally. Every time you modify a filter or the autoexpand, they will be stored automatically if you are the owner of the dashboard or have permission to edit it.
  
  

  About storage

  Until now the configuration of the filters and autoexpand of the hierarchy was shared in all the places of the app where it appeared (Links Hierarchy View gadget, Issue Tab Panel, Dependency Table, Board Tracking...)

  Now the Link Hierarchy View gadget stores its own configuration. So that you can modify filters, modify autoexpand and reset configuration on your gadget without affecting configuration elsewhere; and vice versa, you can modify filters, modify autoexpand and reset configuration on the Board Tracking, for example, without affecting your gadgets.

• Non-editable mode: the filter menus, autoexpand and "Reset configuration" option will not be displayed.