Template (Epic) Cloner
Template (Epic) Cloner for JIRA plugin is intended for any projects where recurring issues exist. The plugin saves teams' precious time by automated issues creation process.
Template (Epic) Cloner for JIRA let you clone Epic together with any linked issues and sub-tasks. As a result you are getting new Epic and new linked issues similar to your template.
Look at the picture below - having one template you can easly create necessary tasks in your backlog (s).
Template (Epic) Cloner for JIRA is available on Atlassian Marketplace under this link.
Details how to install the plugin you can find here.
Please remember that you can try trial version to check how it works.