tree structure display format of transaction SE09

Hi!

I am trying to write a code to display transport request details for a particular transport request,i.e., the output of transaction SE09. I want the format of my output to be same as that of SE09,i.e.,tree structure format. I have tried using ALV but couldn't get the result. I dont have an idea of OOPs. Is there any other way to diaplay the output in tree structure format?

Also from which table to find the subtasks of a particular transport request?