Thank you Paul. I am already using the Text view. Yes, it works fine too. I appreciate your suggestion. I still want to make it clear that the Direct Edit feature I am requesting here is not the same thing (or a replacement to) as the Text Window.
I am requesting the feature not because I urgently need it. But, I think it would be a great improvement for working on a larger set of notes (like in drawing mind maps) on the map view. The system you are suggesting (Text Window) is great for writing longer notes into a handful of notes. Indeed, that is one of my favorite features of TB. I won't live without it. The one I am requesting would be better for fast inserting of short text to many notes in the map. Assume a situation that you want to draw Mind-map, it would be hectic to open every note in Text Window. The View and Text mood would be better than the Text window (⌥⌘X).