Thank you, that's what I was looking for. The only thing I don't understand is what is "u" in
lw(\n[w1]u) tbl says: u,U Move the corresponding column up one half-line. which I don't need, but if I remove "u", the formatting becomes completely broken. In my case I get good results with: .ie n \{\ . nr LL 12.5i . nr c1 1i . nr c2 0.2i . nr c3 1i . nr c4 4i . nr c5 3i\} .el \{\ . nr PS 9 . nr c1 0.5i . nr c2 0.01i . nr c3 0.5i . nr c4 2.5i . nr c5 1.5i\} .TS H expand,center; lw(\n[c1]u) lw(\n[c2]u) lw(\n[c3]u) lw(\n[c4]u) lw(\n[c5]u). Thanks Anton