John Culleton said this at Mon, 27 Dec 2004 15:29:10 -0500:

>\setupfloat
>   [intermezzo]
>   [leftmargindistance=-\outercombitotal,
>    rightmargindistance=-\outercombitotal,
>    default=outer,high]

>The only defect I can spot, and this is really a nit-pick, are the short
>lines 
>in the main body text just above and just below the intermezzo/sidebar.

Ah, that's the "aesthetics" I mentioned earlier: put the curly braces
around outer,high – that sends both values to the default:

\setupfloat
   [intermezzo]
   [leftmargindistance=-\outercombitotal,
    rightmargindistance=-\outercombitotal,
    default={outer,high}]

Delving further into details.pdf (I got this from a day of playing with
it--which is hardly adequate for really digesting one of Hans's manuals)
will probably yield even better results.
-- 
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 Adam T. Lindsay, Computing Dept.     atl@comp.lancs.ac.uk
 Lancaster University, InfoLab21        +44(0)1524/510.514
 Lancaster, LA1 4WA, UK             Fax:+44(0)1524/510.492
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