Plotting With Plotviewer

Below works to create the *.plt in color
I want it to create in black and white
I try place -bw but cant get it right
Any suggestions?

PLOT $!LIST /$!NAME OVER
SYSCOM 'C:\temp\PlotViewer.exe /p $!NAME'

Below works to create the *.plt in color
I want it to create in black and white
I try place -bw but cant get it right
Any suggestions?

PLOT $!LIST /$!NAME OVER
SYSCOM 'C:\temp\PlotViewer.exe /p $!NAME'