Hi @discordbotstudio! If I understood your feature wish correctly, this is already possible and implemented with the included scripts. In the included demo scene (or the online web demo), you can select the smooth terrain editing mode in the terraformer tool to do this. By dragging the highlighted selection upwards, it will create a smooth terrain in neighbouring tiles: This tool uses the DecreaseHeightSmoothConnectedOperation and IncreaseHeightSmoothConnectedOperation operations to accomplish this. If you have any further questions, please let me know!