No decimals in legend display. They will plot but get wrongly labelled.
Boxes are superimposing if too many values are on the X axis.
Plots with shifted Y axes and legends of the curves will be processed sequentially and
not allow to order the legends/shifts other than by the sequence of the LOCAL sections.
German umlauts are not working properly.
Some of the commands are fragile and must be applied in correct order.
Documentation in postscript
PLOTTER (1999)