title: Place key below multiplot graph in gnuplot
body: <p>As the title suggests I want to place the plot legend below a multiplot graph. I add the legend for just one of the plots because the line styles are the same for all. The problem I encounter is that, if I add the key by <code>set key below</code>, the plots themselves get resized as to fit the (large) key inside the canvas. I would rather want to maintain the size of the plots. I tried adding the key as additional plot in the multiplot with <code>set key inside</code>, but then the key can overlap the plots if it is too large. I am using the epslatex terminal.</p>