As RamyMahrous says, the items you add during runtime aren't saved anywhere. The items you put in during design are hardcoded and will always be there. The ones you add during runtime have to be saved by you before closing your app(many options here) and loaded back in when your app starts up.
Today is a gift, that's why it is called "The Present".
Make love, no war. Cave ab homine unius libri.
Danny