Build your note taker interface with scrolling text above text entry. When
the user enters a note and returns you add the note to the full collection

NoteCount := NoteCount + 1
Notes := Notes ^ Return ^ Return ^ NoteCount ^ ". " ^ EntryText@"Note"

Your display icon above the note interaction will contain {Notes} in a
scrolling text box. They can slide it up and down to review but they can't
change or remove anything. When you're ready to save it you can use
WriteExtFile( FileLocation^"Notes.txt", Notes).

HTH,
Mike
====================
Mike Baker
Adobe Community Expert
mike-baker at cox dot net