If you don't need much more than the "normal" columns, but e.g. "lines" mode, try this:
<texcodecontext source="yes">\definecolumnset[twocolTwoColumns][n=2]
\startcolumnset[twocolTwoColumns]
\startlines% enforce line breaks
Starlight, star bright,
first star I see tonight;
\stoplines
\column % here it works!
\startlines
\stopcolumnset
</texcodecontext>
For more details (layout grid features, spreads, different column widths etc.) please refer to the [[manual:columns.pdf|manual]]!