Using the Outlook plugin and in the Today or Info Page view only the project name is displayed for each task. Is there a way to also display the hierarchy to each task?
The "today", "overdue" or "7 days" view always displays all tasks that meet the conditions of this search (have a due date for today or within 7 days etc.). In the task is a sub-task it will also appear on this list, but if the task is a parent task, it will have an arrow icon on its right side which you can use to roll out its sub-tasks to see what needs to be done before checking it off.
If you want to view the complete hierarchy of all tasks within a particular project, simply click on its name - either in the overview or click on "Show projects" and choose it from the project list.