Thanks Matthew for your reply!
I have set the pens generally how I need them and they work for most things pretty well, but can't seem to get the heavier lines at the top and bottom of the windows. I did solve the broken heavy lines problem at the top of the brick arch by setting the brick arch a bit forward of the wall plane. However, there doesn't seem to be a way of getting heavier lines to delineate the actual wall opening.
Maitland and Butler Pty Ltd
AC18 - Windows 7 64-bit