Create SDK code example of complex settings data scenarios

I have noticed multiple plugin developers creating complex data, generally using List<ClassType> values and they want the following

• Get an event when a list has been changed from a User interface
• Get an event when a property of an element of the list has been changed.
• Get an event when the list is done being configured.
• Have a complex relationshop between owner object and ClassType objects (needs reference to eachother).