I'm trying to use advanced road-maps to decide when a story is expected to be resolved based on the due dates on its subtasks.
My end goal is to view a parent task and its sub-tasks in a hierarchy view.
I successfully did so for bugs and dev-improvements (I'm not sure if "dev-improvement" is a standard Jira task type or not, but we have it in our system), but not for stories, and I was hoping I can do that for stories too.
The following screenshot shows that when the parent task type is a story, its sub-tasks are hidden.
I can't view the subtasks unless I choose the tasks hierarchy to be sub-tasks to sub-tasks, which hides the parent task!

The only way to view both the task and its sub-tasks is if the task is converted to a bug or a dev-improvement (I didn't try other task types).


So finally, how can I view stories and their sub-tasks as I can for bugs or dev-improvements? Is it a matter of configuration?