Sketchup Plugin 1001bit !!top!! Link

The 1001bit Tools plugin is a comprehensive architectural modeling suite for SketchUp that automates the creation of complex building elements. Developed by Goh Hun Chee, it is often described as a "Swiss-army knife" for architects and designers because it replaces hours of manual manual labor with parametric commands. Key Features and Capabilities

Method 2 (Manual installation for older versions): sketchup plugin 1001bit