Thanks for the question - that's a deceptively complicated challenge. I have a solution, but so far it's not very elegant.
The issue is that the walls start and terminate in several different ways and I've yet to find a way to automate it. The image above uses lots of different RailClone objects to build up the wall in pieces. If there are multiple walls it'd likely be possible to combine splines together so the number of RC items might not keep increasing.
All the parts are based on a master style which has several different options depending on what's needed. For example the window reveals need a different end brick pattern from the edges. In the attached style you have the following parameters: Swap Courses
- changes the alternating courses. Useful for stacking up RC objectsY Size
- Self explanatory, the height of the wallStart Type/ End Type
- The brick pattern at the start and end of the array. There are 4 choices plus the ability to disable it completely. Brick Type
- Change the brick pattern for either the wall, the sill or the lintel. If using either of the last 2 you should disable start and end type.
I hope the attached file helps a little. I know it's not a very streamlined process at the moment, so if I find a more elegant solution I'll update the post.