Yes, it seems that these commands have disappeared from the list of available commands.
I even went to the Registry Editor and enabled the value of the
HKEY_CURRENT_USER\Software\GRAPHISOFT\ArchiCAD-64\ArchiCAD-64 19.0.0 INT R1\WorkEnvironment\ShowContextMenuTabPage to "1" from "0".
This should make all context menu command appear in the list of all commands in the WE Dialog, and in AC18 it does, but in AC19 it makes no difference.
I will let the guys af GS HQ know about this.
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