That panel is hidden by default in ARCHICAD 19 because the listing and property objects are rather legacy features.
You can go to the Work Environment Dialog and enable its visibility for any of the Tools in the Tool Settings Dialog Boxes page (make the Listing panel visible).
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-Ac28