GUI hierarchy ouput with tree Model

I'm tryingto representa hierarchy.

For example table kna1

The hierarchyisdefined as follows:

Hierarchy Column:Land-1->Kunnr

Example

Hierarchy Column    I   regio  I teflx

India

  -->Customer 1

  --> Customer 2

USA

   --> Customer 3

  --> Customer 4

China

  --> Customer 5

morecolumns: e.g. regio, telfx