Hello,i’m pretty new to unity,esspecially because i haven’t used it for a while…So,i created a terrain that took me some time to build,and then i said that i must TRY to make some changes BUT still,if i screw it up go back to it’s original state.So,i decided to save it as another scene.If i do that and i modify the terrain from Scene2,modifies the terrain from the Scene1 too.Ok,so this didn’t worked.I tried to duplicate it.The same thing…it modified all the terrains.I tried to create a prefab.Still the same thing 
What can i do???:(:(:(
The main ideea is that i want to make some changes to my terrain but if i do something wrong to it,come back to it’s original state and still work on it.How?
Please,help a poor newbie 
Well, uh terrains are stored on the project file and saved as a file prolly named “terrain” not in the scene in other words your like modifying a mesh that both scenes are using… like modifying a prefab mesh a prefab is using. the prefab uses the mesh data from that .fbx file or whatever your using - same concept I’m almost positive that is your solution. If you haven’t found that out already 
I don’t know how much better to put it, mate.
I’m pretty lost :S I simply use the normal unity terrain and i made some mountains for instance but i putted them on a wrong side and i wanna try to see how does the same map with the same proportion if i move somethings to the left - it was just an example.Also,when i went to my project folder,i haven’t found any terrains And yeah,thats the ideea.I see that unfortunately i’m modifying a mesh that both scenes are using.I wanna somehow fix that but keep my progress on the terrain
The main ideea is that i want to copy that terrain as a particular copy not an instance of a terrain used on another scene OR somehow save the original project as another file so when i enter on that new scene and i edit the terrain on it,does not affect the terrain on the originalone