ISystemFilterPoolReferenceManager.addReferenceToSystemFilterPool(
String filterPoolName)
Given a filter pool name, create a referencing object and add it to the list.
SystemFilterReference.getParentSystemFilterReferencePool()
If this is a reference to a nested filter, the parent is the
reference to the nested filter's parent.
SubSystemHelpers.getParentSubSystem(
ISystemFilterPoolReference poolReference)
Give a filter pool reference, return parent subsystem
Returns this: (SubSystem)poolReference.getProvider().