To do this go into each template world say "dirt" and right click on the ground and select "save object." A new window will open asking you to select a location in which you would like to save the object. Now you can, technically, save it anywhere you like, but if you wanted the ground in your object gallery in Alice then select the required folder within the Alice folder and then the gallery folder and then click save and your done. Now open up a different template say the grass one. Then go to add objects, and look for the object you just saved. Import it into your Alice world and then to switch over between landscapes just set the one you want to be showing, isShowing="true" while the other isShowing ="false".
