Combinations settings

In the Inspector window, switch to the third tab, open the Combinations foldout, this is where you manage your environmental objects groups:

Each prefab will have an entry if its instances have been grouped. The Count property indicate how many group created from its instances, this number depends on the value of Combination Physical Size property.

For example, in the image above, 77 instances of the AutumnTree2 prefab have been grouped into 5 larger objects.