Thank you Oleg! I was considering this, but like JMaynier said, I can only have one level of entities.
Also, there will be just too many buttons at the end of the day if I add all my templates as a button.
I was considering creating a structure of entities and duplicating them at first, but it is not possible. Maybe with code?
Other thing that could work with code is having a parent entity with all the tasks, types, estimations and steps/levels in a rich text field and generating the template from code, but again, not sure how to do it with NodeJS.