How can a map be "rearranged"?

["Brizzi, Ray" <Ray_Brizzi@anntaylor.com>]

Netview does a fairly good job of discovering the network and building a
picture. But it puts Asia right next to Connecticut.

Is there a way to drag and drop sections of the map so that the locations
more or less correspond to a real world image? Also, to have the basic
structure preserved as more nodes are added.