Because these are "hidden" add-ons, they don't appear on your main toolbar right away. Introduction to Archicad Goodies and demonstrations 7 Jul 2022 —
The suite includes several "secret" tools that aren't visible in the default ArchiCAD interface. Notable features include: Accessories: Automate the placement of wall, floor, and roof objects. Interior Wizard: Quickly add moldings, wall panels, and finishes to zones. 3DStudio In: files directly into your project. Check Duplicates: archicad goodies 28 install
There are two primary sources for these tools, as the official "Goodies" page structure has evolved over the years. Because these are "hidden" add-ons, they don't appear