Architects should have two types of rotations, similar to the two arrows that have same direction. The rotation with a line will turn the blueprint at a 90 degree angle, as it does now. The regular rotation should turn the blueprint at a 45 degree angle. Such an improvement will make diverse walls like barricades, turn out much better. In addition, in some areas, it's better to have walls at a 45 degree angle rather than a 90 degree. For example I'm near a stream that is at a angle that I cannot effectively build near. This will improve the overall appeal of the game...