Jira is flexible, yet complex tool in some cases :)

- In order to make the fields (inline as well) editable, when the ticket is closed, go to Workflow -> Select 'Closed' status -> Click Properties
- There would be flags with bool values: we need jira.issue.editable
- ![](/images/edit_closed_issue-e1496131332151.png)
- In case you see jira.issue.editable is false - either change that to true or delete the property key with prev. value.
- Don't forget to publish the updated workflow.