Transition Manager for Jira Cloud

"This plugin allows you to easily create, update or transition related issues during a workflow transition. Define templates that can be used for one or more workflow transitions.

Features include:

Create one or more sub tasks during a workflow transition.
Create one or more linked issues during a workflow transition.
Create one or more Epic issues during a workflow transition.
Update an Issue during a workflow transition.
Transition related (linked) issues during parent transition
Specify template to create or update issues to allow for easy re-use, saving on duplication of details.
Specify conditional values for Issue field values or current user when determining if Issues are created, updated or transitioned.
Easy make modifications to automated creation / updating / transitioning.
Update an issue with new watchers or add a comment.
Automate some of your work for greater efficiency."