Print style by colour

Hi,

I am using DraftSight 2017 SPO (newest version) on a Mac (macOS Sierra).

I want to print a colour drawing in black and white and would like to change the print style depending on the colour.

For example:

  - print red lines with thick black continuous lines

  - print green lines with thin dotted black lines

etc.

Any idea how to do that?

Thanks,

Dietrich

PS: I found a way to change the print style depending on the layer but in the drawings I want to print there is no one-to-one correspondence between layer and colour (objects in the same layer might use different colours and the same colour might be used in different layers), so this doesn't solve the problem...