\environment columnsets-000

\definecolumnset[example][n=4,page=left]

\definecolumnsetarea
  [one]% [left]
  [x=1,y=1,nx=6,ny=6,
   background=contrast,state=start]

\definecolumnsetarea
  [two]%[left]
  [x=3,y=10,nx=4,ny=6,
   background=contrast,state=start]

\stopsetups

\starttext

\startcolumnset[example]

  \dorecurse{25}{\fakewords{50}{100}}

\stopcolumnset

\stoptext