Is there a simple way to draw an elliptical staircase?
The easiest way I can think of is to draw the ellipse with 4 arcs, and offset by the width of the stair. You can use the Geometry / Div + Dist. to divide the minimum or maximum width of the treads. This works for one arc, and then you have to draw circles by radius to segment the remaining treads.
It will be easier to draw, than it will be to build!