IT Services would be even more awesome if we got the ability to export/import a leaf and it's children, such that on import, I would point each of the non-trigger defined leafs to a host, where it's expected that the same trigger condition is located as child-leafs.
A use-case for this could be exporting a leaf that contains all relevant components for the LAMP stack.
Each deployment of the LAMP stack would only require a leaf import, pointing at the newly deployed hosts.

In this scenario i'm assuming that everyone configures the it services tree like this:

Service

• Server(s)
  • Trigger(s) on server(s) to deliver said parent service.