Game Development Reference
n Duplicate Zone : Duplicate an existing zone. This is very useful if you
have an area that is very similar. You can then modify it to make it look
different. This is useful if you have a forest area that will change into a
desert zone, you can duplicate the forest zone and then modify it so
that it goes from one type of terrain to another, rather than having to
generate the forest from scratch.
n Delete Zone : Deletes the currently selected zone from the list.