Weird, I still can make multichannel objects in Nuendo 15: make a 9.1.6 grouptrack and convert that into an object (‘create objects from selected track’).
So, don’t understand why it can’t work from your side…
Yes, it’s very weird. Using the “create objects from selected track”, doesn’t trigger any action att all, and as I said, the drop down list in the ADM Authoring window only shows stereo groups and fx channels as possible options. Thanks for the feedback anyway. At least now I know it’s supposed to work in version 15.