Terrain - trees

Hello.

I am working on a small sized school project in Unity using Unityscript.
I’ve created a script for cutting down trees which consist of two objects - stump and the rest of the tree which are stored in empty gameobject with script, colliders etc. attached to it.
I would like to add that prefab to the tree generator in terrain inspector but all it places on the terrain is just a stump object without anything attached to it.

Is there any way of placing multiple trees on my map without duplicating/creating new objects?

Unity terrain trees don’t support prefabs and scripting so you’ve got a dead end there.

Check the asset store for Mega-scatter which does exactly what you want, or you could place prefabs manually (bit of a pain, there).