Would be awesome to have a tool that generates pedestrian stairways, with railings and landings, that can ascend/descend hillsides and automatically conform to the terrain. Would love to see various styles, e.g., wooden, concrete or even marble stairways. Ideally, the angle of ascent/descent could be adjusted manually. Also, as a bonus, would be cool to be able to pivot the direction of each segment of the stairway at each of the landings.