Keynotes can be displayed in three formats: key only, note only, or both key and note. When using both keys and notes, you can also specify the typographical device used to separate the key from the note (for example, key - note as opposed to key:note).
You can change keynote formats individually or globally within a single drawing. For example, you may want to display both keys and notes while you are keynoting a drawing, but display only keys when you finish.