In the SketchUcation Plugin Store, search for (or BZ_延伸线). Download the latest .rbz file. Return to SketchUp's Extension Manager .

The BZ Toolbar requires Fredo6's shared component library to run. Download and install LibFredo6 first.

In this comprehensive guide, we will explore what the BZ Toolbar is, why it is still relevant in the modern SketchUp (2021-2025 era), how to install it, and a deep dive into its most powerful features.