HierarchyMultipleParentSelectionNode.insertChild Method
        
 Inserts a new child node before an existing child.
 
         
        Parameters
        
            - node
            
 
            - 
                
Type: ExplorerNode
The node to insert. 
            - insertBeforeNode
            
 
            - 
                
Type: ExplorerNode - May be null
The node before which the new node will be inserted.
 If null, the node is inserted at the end of the list of child nodes.