Question: How to Create a Task from a Todo (i.e. link task to a TODO)

How can I associate a task with an existing Todo? This will help us identify todos assigned to individuals (ex. work order)that must be completed to move the project further.

Point 1.2 may shed some light

https://docs.erpnext.com/docs/v13/user/manual/en/using-erpnext/to-do