WDA: Tree structure in web dynpro for ABAP

Hi,

I am trying to build a tree structure with information something like the following:

Country

State

City

I used the UI Element "Tree" and I was successful in building it. The only problem is that it supports only one column in each row like name.

I need multiple columns in each row like Name and population.

1) Is there any solution for this using UI element "Tree" only?

2)I checked that there is Table tree UI element, but I could not figure out how I could use it for hierarchial structure like that of my requirement? Can I use it? Is there any example application with hierarchial structure?

3)For tree UI element, any node that is not directly below context node has to be non-singleton. It will lead to adverse performance. Is there any solution for this?

Thanks in advance.

Regards,

Srini.