When you install the accessory goodie, it also creates an 'Accessories' library which you will find the it program folder where Archicad is installed.
You need to load this library with your Library Manager.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11