While adding multiple tasks, by default they are ordered (using task order) sequentially. Now it is not always possible to remember: 1) the order in which these tasks would be executed 2) which task would be dependent (has a parent task) or independent while adding them. To solve these issues, you are provided with Organize Tasks option, which helps you organize tasks after they have been added.
1. Select Actions dropdown >> Organize.
2. Organize Tasks page opens up.

3. To change order in which a task appears: