Blue Iris

I have just updated one of my Blue Iris Servers to the latest version Version 5.5.0.7. I don't seem to be able to add/modify camera groups now.
The Group Selector button on the General Camera Setting Page is no longer there.
Has it moved elsewhere?
I know I haven't had the upgrade very long and a number of things have been repositioned or changed but some help on this would be appreciated.

OK, I have now found out where it is and how to do it. Have to use the edit layout for the selected group, right click and the options are there to select camera, or delete group.
Guess I should have explored more before posting.