Does the unity demo ship with all the trees that are shown in the terrain section of the online manual - Alder, Sycamore, etc? I can’t find these anywhere.
Also, are the trees from the island demo supposed to work in another scene? The only one that it would let me work with is the Banyan tree - but when I painted it into a new scene the trees were very small (presumably because my environment is huge). Changing the scale setting in the Inspector didn’t change anything. They also had no textures.