Use additional levels of sub-items to organize your work with more granular detail. This allows you to capture all the necessary tasks that need to be completed for project success and completion.
You can nest your tasks underneath others by either clicking the ‘Add Sub-Task’ button on a task or by using drag-n-drop.
How do I edit a top-level task's date?
The start and due dates of a task are based on the earliest start and due date of its subtasks. The dates of sub-tasks roll up to the dates of the top level task. Editing the dates of the sub-task will modify the dates of the parent item.
To change the date of a top level task you must first change the dates of the subtasks associated with the parent task. New dates will appear in the top level of the task.