If you want a task that functions as a header, which you can also add comments and files to, or if you've created a parent task with several sub-tasks that you’re worried about accidentally completing the parent task, then an uncompleteable task may be exactly what you're looking for.
Make a task uncompletable
When creating a new task or making changes to an existing one, add an asterisk * and space ␣ before the task’s name to make it uncompletable. These tasks don't have the circle icon next to the task name.
For example, if you want to create an uncompletable task called "Flight check-in", write * Flight check-in.
Although it looks similarly to sections, you can add comments, attach files, add a date and time, and assign people to an uncompletable task.
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If you complete a parent task with an uncompletable sub-task, it will still mark that sub-task as completed, but the circle icon remains hidden. It's best to delete that sub-task and recreate it.
Make a task completable
If you want to turn an uncompletable task back into a completable task, remove the asterisk (*) and space from the beginning of the task’s name.