You need a PMK which has the pen settings you require.
If you are changing the pens in order to plot, or toggle between printing and plotting, use the PMKs located at 3 Resources : Attributes.
If for some reason you need Archicad pens in Plotmaker, save any PMK from AC.
Import the PMK to your layout book. Place the drawing outside the printable area. Option+click on it. Cmd+Option click on the corner of the paper (the larger rectangle, if your margins aren't zero, which they probably are.) Check both boxes, and OK.
If you like, you can create an empty layout to hold the drawings.
That's it.
You can use this to get the new pen settings into existing layout books, instead of importing the whole book into that empty file. The standard printing pens are in the file "Standard Pen Table Mar05.pmk", also in 3 Resources : Attributes.