To attach a single Custom Screen to a service
The Edit Service Item screen displays.
In this example the objective is to attach the a custom screen called LABS - Monitoring Laboratory Work to service C - Crown Related Services ('Monitoring Lab Work' was created in an earlier example)
The norm is Popup when planned or Popup when completed, unless the popup has been disabled until a particular date when you want to start using it.
The outcome is that this custom screen will popup when you plan service C.