Improvement on the current view of the Rapid Board on Sub-tasks

Currently, the sub-tasks are displayed in the Issue Detail tab that appears when you click on an individual issue as per the following screenshot:

A suggestion is to enhance this feature by providing an option to display under the parent issue with some sort of indentation. One of the best example would be like the one in the Work mode of the Rapid Board which uses swimlanes. As an example, the usage of Swimlane by Queries: