Yes, there are all in the same ST location. I also have another ST Station in different ST location where it is the only hub. It does not have the Replace Hub on the 3 dot menu.
Based on my observations, you won’t be presented with the option to create a Hub Group if you only have one hub on your network, just like you don’t get the Hub Replace menu item. It appears you must have at least two hubs on your network to get those options.
And even if you have multiple hubs, you can’t create a group of one since the button is greyed out if you can’t select a second eligible hub.
So I finally got around to doing this and added the aeotec hub to my setup. I tried to create a hub group but looks like my original V2 hub cannot be the primary hub. Can I set my V2 hub as secondary hub? If yes, will everything keep on working as per the original setup. I dont plan to add any new devices to the new Aeotec hub.