Grayscale Printing of Reference Files

Is there a simple way to print references in a grayscale, similar to the way it was done in previous versions of MicroStation?  For example, with the proper plot configuration and pen table, all you had to do was to change the logical name of the reference to "gray" or "grey" and the reference would plot out at a certain RGB that would be a nice, light gray, perfect for signal plans and SPM plans.

I cannot find the right combination of driver/pen table to get it to work now.