Copying/creating a level via script

[skillmaster19]

Can someone give me a very basic example of copying and creating a level from the copied level, or at least show me where I can find all the functions for it? I need to create a simple instanced quest for a "test" that requires this but I don't want to ask for the actual thing for it because that would be cheating. I will need to know how to:
create the level, with npcs.
identify the level name via script and the npcs via script(I have multiple levels for the instance, npcs in one level will need to effect npcs in the other, but only to 1 instance)
(please don't send me straight to the instance manager in the code gallery)