------------------------------------
<kbd>
-Any keys or key combinations, mouse buttons, or controllers should be marked
-with this element.
+Any keys or key combinations, mouse buttons or controllers, menu items or
+textual user input should be marked with this element. It is used here in
+the widest possible sense, qualified by classes.
E.g.:
"Press <kbd>F</kbd> to fit all tracks to the height of the Editor window."
"Move <kbd>Fader 1</kbd> on your MIDI controller to bind it.
* Do not capitalize concepts in the text body, with the possible exceptions
of _the_ Editor and _the_ Mixer.
+
+5.4 Janitorial tasks/review
+---------------------------
+
+If you encounter something that is unclear or patent nonsense, but you are
+not bold or knowledgeable to fix it, express your doubts with an <p
+class="fixme">editorial note</p>, so that readers will be warned and fellow
+editors know where there's work to do.