Sidehistorik
...
Some other Apps like Issue Links Viewer or Pathfinder can help visualising the linking.
Controlling links
In every Jira, links are somewhat had to handle, as the links types created over time often has som issue minded relations.
For some customers we have added the App Extended Schemes for Jira, wich give the ability to (amon other functions) to control wich links can be usesed for issue types.