The October Annual 2010 includes a complete new set of drawing commands, programmed by CC3 community member Joachim de Ravenbel. They make creating complex wall shapes - among other things needed for authentic-looking medieval castle floorplans - a snap.
The accompanying tutorial takes you through creating a complex castle layout, showing off how the different commands interact and allow you to draw beautiful layouts in a fraction of the time it needed before.
The tool pack Castle Walls includes