I think, what you are describing is the document journal.
This essentially replaces the document tab that you used to get on the old Sharp ROM.
Select the day that has the note, go to day view and you will see a three card index view, The Appointment card is at the front (Alarm Clock Icon), the Alarm Summary is next (Single Document Icon) and the Journal is the last tab (Multiple Document Icon).
Select the Journal tab and it will show documents written on that day.
Was this what you were seeing ?