Support posts can be a solid wall, a base, or vertical posts, and each kind turns on independently. A vertex group marks where they go. Curved rails let you place newels, add points along the curve, and disable newels on those points with a vertex group.
The base mesh should be quads: n-gons and triangles are not supported. More than 70 settings update the staircase in real time, from a simple flight to a complex one.
