I am not quite sure what you mean by 'offline' publishing, but you can still choose to publish a BIMx model from the FILE menu.
This will allow you to create a new publisher set or update an existing one.
If you don't have that option, then you may have to add it to your custom Work Environment or load a standard WE.
One of the forum moderators. Versions 6.5 to 27 Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10 Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11