Any task can be moved inside another task as a subtask. Conversely, subtasks can be moved to the upper level.
To transfer a task, it must first be selected. To select a task, use either of the following two methods:
To convert the subtask into a standalone task, go to the task list and click the “+” button at the bottom of the list. The task appears in the list as an independent task.
To convert a task into a subtask of another task, open the main task in which you want to add the selected task as a subtask. After that, click the “+” button in the subtasks list. Note that you must have the relevant permissions to add subtasks.