Smart Checklist allows users to add additional notes per any checklist item.

Details help describe important information about the checklists for new checklist users for clarity. 

That way, users can add instructions and explain “What to do” and “How to do that”.

Just like that:

Adding details

Details could be added in several ways:

Deleting details

Details could be deleted in the same ways it was added:

Editing details

Edit of the details is available: