How do I create a subtask?
Before you can create subtasks you need to create a normal todo. When you open the todo again, you'll see the option to add subtasks.
Edit a subtask
To edit a subtask you simply click on its title. It will give you the ability to add due date, reminders, assignee(s), attachments and notes. Just as a normal todo.
Note: If you have created subtasks but it isn't reflected on the todo board, then please try to go back to the list of groups and then re-open the group. This will refresh the todo list and you should now see the subtasks reflected in the list.
Learn more about adding subtasks from the web application: