Source Browser ?

1\environment columnsets-000
2
3\definecolumnset[example][n=3,page=left]
4
5\definecolumnsetspan[wide][n=2,background=contrast,color=white]
6
7\starttext
8
9\startbuffer
10
11  \startcolumnsetspan[wide]
12    \fakewords{25}{50}
13  \stopcolumnsetspan
14
15  \fakewords{25}{50}
16
17  \startcolumnsetspan[wide]
18    \fakewords{25}{50}
19  \stopcolumnsetspan
20
21  \startcolumnsetspan[wide][default=btrl]
22    \fakewords{25}{50}
23  \stopcolumnsetspan
24
25  \dorecurse{3}{\fakewords{100}{200}\par}
26
27\stopbuffer
28
29\startcolumnset[example]
30
31  \dorecurse{4}{\getbuffer}
32
33  \dorecurse{5}{\fakewords{100}{200}\par}
34
35\stopcolumnset
36
37\stoptext
38