postscript code to ignore colours in RIP

Hi

I have a Harlequin Rip V11.0, in which I am trying to set up a "page feature" that ignores specific colours, the idea behind this is

instead of having to goto each print set up and add a colour to ignore in a PDF work flow I just add that colour once to the page feature and have that

page feature activated in each print cue, basically I only need to add the colour once.

The below code is what I have but it does not appear to do anything, I have posted on the Harlequin site and had no joy, gone back to

Harlequin to see if they can offer any help, but have had response.

I was hoping that someone preficient in writing postscript may be able to offer something I can work with, please see my

attempt below, the page size and elements should not be altered, this is only to ignore colours, any help welcome.

<<

  /SeparationDetails <<

     /Ignore <<

      /TEST true

       /slug blue true

      /Keyline true

     >>

   >>

>> setpagedevice

cheers

Kev