In the Task List view, you can use menu options to expand and collapse the full or partial list of tasks, or scroll to the first or last task in the list.
To navigate the task list:
From the menu, select View, then select Task List, or from the toolbar, click the Task List
button.
Select View, then select an option:
Expand
Expand All Below
Collapse All Below
Expand All
Collapse All
Scroll to First
Scroll to Last