The task I selected doesn’t move when I click one of the outline buttons. What’s happening?
If you are unable to indent or outdent your tasks:
1. You may be trying to outdent the first-level task. Tasks at the first outline level cannot be outdented. Instead, indent those tasks that you want to include as subtasks to the first-level summary task.
2. You may be trying to indent or outdent assignments, not tasks. The Resource Usage and Task Usage views display task and resource assignments with indentations similar to those of subtasks. Although assignments may be shown or hidden along with subtasks, they cannot be indented or outdented.
3. You may be working in a view that doesn’t use the outline buttons Outline buttons (such as Outdent or Indent ) work only in the Gantt Chart, Task Sheet, or Tracking Gantt views.