Since the official source is often in Chinese, here is a guide and a direct overview for a clean installation. Key Features of YQArch Architectural Components:
This is the killer feature. From a standard floor plan, YQArch can automatically generate 2D elevations and sections. You select the walls and windows, set a projection height, and the plugin draws the elevation including roof slopes, windows, and doors instantly. Yqarch Autocad Plugin Free Download