Add a series of Subtasks easily into any Task on the Board by importing a predefined Task Template as Subtasks.
To Import a Template as Subtasks:
Open the appropriate Board and click once on the Task you wish to add Subtasks.
Click the button on the Task detail pane menu.
Select Import Template as Subtasks
Optionally, you may deselect any tasks from the template that you don’t wish to include.
The template will be imported as Subtasks into the Task you selected in Step 1.