Hi all, I just stumbled over this "hack" which I was looking for since ever: <hansl> set verbose off open denmark --quiet list L = log(dataset) plot L options with-lines time-series literal set termoption lw 2 # set linewidth globally # set dashtype for each series literal set for [i=1:8] linetype i dashtype i end plot --output=display </hansl> If you execute this, you see that you can globally set the linewidth as well as the dashtype very easily using gnuplot. Best, Artur