Affects: HPGL output to file or plotter
This parameter determines which plotter pen will be used to draw marker lines or symbols which are sometimes added to the graph. It, and the related "Axes pen" and "Data pen" parameters are all initially set to the same number (1) to allow for quick single-colour plots.
Selecting pen number 0 suppresses plotting of those items.
|Key sequence||Parameter||Initial Value|