New player trying the complete the last task in the Madagascan Simian Conservation Project tutorial. I have to get the zoo up to a 90% welfare rating (currently on 84%) but have one habitat where the animals are demanding access to a pool of water. However, in the Terrain menu both Sculpting and Terrain Stamping Tool are marked as 'Disabled by scenario'. Is there any way round this, short of tearing down the habitat (one I created) and starting again?