jQuery Grid Plugin - jqGrid

Hello.
Want to ask the following question:
As in TreeGrid (nested) move nod (to the other parent or to move inside the parent). The documentation did not find a description of this procedure, although it seems obvious.
If using existing tools such no (very strange), then tell me how to create a dialog about clergymam:
select from the drop-down list of loaded now nods (where or with whom I want to put),
select from a list of 4 possible options for the add (2 in and 2 out - predefined)
and send it to the server reboot of the tree.
To process the data sent to the server, the not problem is, but here is a beautiful and convenient user interface does not work.

Thanks in advance and sorry if the translation has turned bad.