Our office generally only uses 3 rows of pens:
1) Architectural
2) Architectural "sometimes gray sometimes black" (like apartments or fit-outs on an overall plan)
3) MPE & Structural
We then have three corresponding pen settings in Plotmaker (placed as PMK's on the Master sheet). One has black Architectural and gray Engineering, one has black Architectural and black "units & fitouts", and one has black Engineering and gray Architectural.
You match-and-inject the pen settings of the PMK into the view you place.
It took a little to set up, but is pretty easy on the end users. They just learn to use either pen 04, 24, or 44 for light lines, 08, 28, or 48 for dark, etc.
Tom Waltz