Autofill Subtask Custom Fields based on Same Fields at the Task Level

[James]

I'm cloning a Task template with 10 subtasks, and once the clone is created I need to fill out several fields. However, I also need to fill out those same exact fields in all 10 subtasks so I can assign them to different people. Is there a way to have custom fields in each subtask autofill with the exact values of the corresponding fields in at the task level? For example, if I enter "X" in the "Name" field of the task, I want the "Name" field in each subtask to autofill as "X". 

Thank you!

[Tony Rossiter]

@James 

Jira won't do this out of the box but there are a few customized options that could work.  

1. You could write a script to update the fields in the subtasks through ScriptRunner.  Here's a thread where that solution is discussed: https://community.atlassian.com/t5/Jira-questions/Script-Runner-Update-subtask-custom-field-based-on-parent/qaq-p/769490
2. You can also do it through a Workflow transition with post function using Jira Suite Utilities.  They have a specific post function called Copy Value From Other Field that you could use to copy specific field values from parent to child ticket.  I would do this by setting up the transition from a status to itself (or from any status to itself) and then locking down the transition using a workflow condition so that only specific users could run it