It works for me just fine in AC22, and I think it should also work in Trial version.
Just make sure that you are in the Floor Plan Viewpoint when activating the menu command, in other types of Viewpoints, and in the GDL Object Editor Window, they are grayed.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27