Subtasks allow you to add detailed steps and activities to a Task.
1. Go to the Tasks tab, find and select the Task to which you want to add a subtask.
2. In the right panel go to the 'Subtasks' section.
3. Type the Subtask name in the 'Add Subtasks here...' field, and press Enter to create the subtask.
4. Click the checkbox located on the left of the subtask entry when the subtask is completed.
5. To Delete a Subtask, press the 'X' button on the right of the subtask entry.