Help make or update my XCode sample project to use basic Core Data Techniques to have a master / child tableview design function completely. You will be responsible for making sure the UI elements on screen are fully functional. You will deal with: 2 Core Data Entities 2 arraycontrollers potentially 2 TableViews 4 buttons: Add person, remove person, add address and remove address The XCode project will be a core data cocoa app with the document option. You will also use no code....just change the settings in XCode to make it work.