Heirarchical Tree Issue

Hi,
I am trying to build a tree in a table.
I have built that and now am enhancing the application as per my needs.
What i want to achieve is the following:
The child rows each have a field namely Quantity which the user can change.
For that i first of all need the LeadSlection to fire the change for that particular row.
When i am getting lead selection, its basically showing me the row number within that tree...
For instance,
+ Row1
- Child1
+Row 2
- Chilld2
- Child3
If i choose Child 1 or Child2, value is 0 and if i choose Child3 value is 1...
So its basically taking the LeadSelection within the Parent row...
The idea i am trying here is to amend an attribute of one of the children (Child1, Child2, Child3)
So, how can i achieve this?
Lastly, wheneveri expand a node, say the number of elements is 2, i collapse the node and reexpand it.. and the number of children become 4 and so on...
i have set the ChildrenExpanded property to true onLoadChildren...
Lokking for guidance here..
Regards,
Dev

Hi DB,
   you are asking alot of thing and it´s like a job, you have to code a bit.
look here:
https://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/90dae990-0201-0010-d886-ef4afe418d1e
https://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/38650ecd-0401-0010-10a0-f9d8fd37edee
and search into SDN forum, there are also some topic where i posted some of mine example on tree usage.

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