So… in 2.79 I would often construct a group in a hidden layer which I would then duplicate around the scene with dupliverts on empties…
So now collections are replacing both groups and layers… so that should be fine: a new collection for my ‘group’ … the problem is… what should I set the render, view and screen buttons in the outliner? If I turn render off, the group doesn’t render even on the dupliverts… if I turn it on, the group appears in the centre of the scene. Do I have to put it in a separate scene? What does the additional screen icon do?