[What process do I use to move everything from one isle to another?]

I am trying to move a whole isle (including terraforming) to another isle. I am sure I read something about it once but don't' know the process to use to do it. (Who to contact, etc.) I was thinking that Linden Labs  had an option for transferring  all  to another isle? We are trying to replicate  what is on one isle that will end to another that will continue to be active.