1) Hold the Command key and select a Category menu item to move an item to the selected category. Hold down Command and Shift to move the selected item and move to that category.
2) Command-Tab shifts the focus (from list to text editing when using Get/Edit Note, from item name to text edit when creating a new note)
3) Option-click in list or category menu will not save any changes to the current text item (like selecting Revert before moving to another item.
4) Quit is the same as hitting OK button (which saves any text entered or changed for the current item).
5) Item names can never be the same, when saving an item, if the selected name already exists, a number will be appended to the name (e.g., Untitled Item, Untitled Item.1, Untitled Item.2, etc.)
6) Command double-clicking an item in the list will select all the text, put away the text edit window and auto-paste the text into the running application.