Display Parent Field on a Sub-task Screen

Problem Definition

It's not possible to display the Parent Field on a Sub-task Screen in JIRA so that it has the Icon, Key and Summary like in Portfolio,(instead of just in the Breadcrumb Trail) so it makes easier the visibility of the parent issues when looking at the sub-tasks.

Suggested Solution

Add the Parent field on the sub-task screen, so that shows the Icon of the Parent issue type, the key, and the Summary.

Why this is important

Helps on the visibility of the Parent issues when viewing the sub-tasks.