I need margin notes in a doublesided page environment in MKIV.
\setuppagenumbering[alternative=doublesided]\setupinmargin[location=both]\starttext\inmargin{n1}\input knuth\inmargin{note 1}\page\inmargin{n2}\input knuth\inmargin{note 2}\page\inmargin{n3}\input knuth\inmargin{note 4}\stoptext