\setuplayout
  [margin=1cm]

\showframe

\starttext

% \dorecurse {3} {
%     \ininnermargin{\expanded{\dorecurse{12}{IM\recurselevel\space}}}%
%     \inoutermargin{\expanded{\dorecurse{12}{OM\recurselevel\space}}}%
%     \input tufte \par
% }

% \page

% \dorecurse {3} {
%     \ininner[stack=no]{\expanded{\dorecurse{12}{IM\recurselevel\space}}}%
%     \inouter[stack=no]{\expanded{\dorecurse{12}{OM\recurselevel\space}}}%
%     \input tufte \par
% }

% \page
% \enabletrackers[paragraphs.anchors]

\dorecurse {3} {
    \ininner[stack=yes]{\expanded{\dorecurse{12}{IM\recurselevel\space}}}%
    \inouter[stack=yes]{\expanded{\dorecurse{12}{OM\recurselevel\space}}}%
    \input tufte \par
}

\page

\dorecurse {3} {
    \ininner[stack=continue]{\expanded{\dorecurse{12}{IM\recurselevel\space}}}%
    \inouter[stack=continue]{\expanded{\dorecurse{12}{OM\recurselevel\space}}}%
    \input tufte \par
}

\stoptext
