Wall Body converts any 3D solid, mass element, or group to a wall object, and Profile Sweep uses any polyline to sweep any shape of a wall. Instead of mutins displayed by creating a custom block and attaching it to the window, there are parametric mutin types that include rectangular, diamond, sunburst, starburst, and gothic. In plan view, you can control window-specific options such as sill placement. Window mutins are controlled through a dialog box. Inset shows parametric changes.
Stairs now offer angled risers.
Stair and stair railings have improved so much that you could almost call them new features. You can now modify stair runs and landings separately, and you can create nonrectangular stairs with tapered edges or with a curve shape. Landings can also have nonrectangular shapes. Stairs can also support customized edges by projecting to objects such as walls and polylines. Stairs now support sloping risers, another top item on the wish list.