how to add items to a selected favorites tab

Question

How is it possible to make a table view inside a new tab that features cell items that have been disclosed with a detail view? I want to have a button in these detail view that allow the previous selected cell and the detail view to be selected and added to this new array that can be displayed in an iphone table.

here is the code i have in place for the array

    rootArray = [[NSArray alloc] initWithObjects:@"A1", @"A2",  nil];

This array is the first navigational followed by a second almost identical one.The third one discloses individual views and nibs for each individual array.

im a 16 year old and want to learn how to do this properly. thanks