It is possible to clone issue hierarchies created with “Hierarchy for Jira” from Adaptavist.
Hierarchy for Jira displays
Jira standard hierarchies (e.g. Epic - Story - Subtask)
Custom hierarchies created with “Hierarchy for Jira”
Clone Jira standard hierarchy
If you want to clone a standard hierarchy (e.g. Epic - Story - Subtask), simply follow the documentation for Epic/Tree Clone.
Clone “Hierarchy for Jira” custom hierarchy
Follow the Bulk Clone instructions and keep the following in mind:
Select all issues you want to clone (not only the parent issue)
In the Bulk Clone dialog under “Clone additional fields”
select “Issue Links”
select “Adjust issue links between issues part of this Bulk Clone”
deselect “Keep issue links to issues not part of this Bulk Clone”