Hierarchy gateway O data service creation...

Hi Folks,

I am looking for example or help for creation o data like below..

Output :

Module 1

     -Track Name 1

          -Reports

               -1

               -2

               -3

               .

               .

               n(dynamically report name will populate)

Module 2

     -Track Name 2

          -Reports

               -1

               -2

               -3

               .

               .

               n(dynamically report name will populate)

Amol S