How to use "Interior Modeling 2.0" to create curved stairs?

This tutorial is about how to use “Interior Modeling 2.0” to make curved stairs. It cover the process of modeling stair steps, railings, and handrails using operations like "Guide Lines", "Liner Array", "Arc-Fillet", “Loft”, and more. It also includes methods of applying materials to each shape.【Please turn on the Subtitle option to view the instructions】