Need a help in Screen Design for Nested Business Object

Hello Experts,

I have to design a Thing Inspector screens for the BO , which is having the below structure

Root Node{

           [Key] Master ID

                    Desc

                    element (s)

                              Child Node[0,n]{    

                                                  Child ID

                                                  Desc

                                                  element (s)

                                                            Leaf Node[0,n]{

                                                                               Element 1

                                                                               Element 2

                                                                               Node(s)[0,n]

                                                                             }

                                                  }

                      }                   

The Scenario is First User will Create the Root node entries based on Root node entries Child Node entries will be Created, after that Leaf Node entries will be created. I have Generated TI Screens by these screen I can only able to create entries till Child Node but need to create the entries in leaf node also.

Please help me how to Create screen for whole Object, which should match that above Scenario.

Thanks in Advance.

Regards

Ravi