Since I've got no answer, I date to resent my question once more, and
even to add to it.
I typeset a document in two columns on the grid. I use both columns, and columnsets. I place footnotes in the "lastcolumn".
[rule=off, way=bypage, location=lastcolumn, conversion=set 3]
[location=left, width=fit, hang=1]
1) How can I set interlinespace to a smaller distance? (I don't care that
the footnote lines would not be on the grid---I prefer it to a very
loose interlinespace.) I guess that there is better way than to write
Moreover, it doesn't work well since on the first line is apparently
inserted a strut.
2) In columnsets, the footnotes appear in the column where they are
referenced, not in the last (the second) column. How can I force it to
the second column?
Many thanks for your answers.