Expand the tree to the path of a particular node, then select it.
The path to select; A string of separated node IDs.
The path should include a leading separator. eg '/root/usermanagement/users'
The field to get the data from. Defaults to the model idProperty.
A separator to use.
Defaults to: '/'
A function to execute when the select finishes. The callback will be called with (bSuccess, oLastNode) where bSuccess is if the select was successful and oLastNode is the last node that was expanded.
The scope of the callback function