HierarchicalListPlugIn:

-------------------------------------------------------------------------------
   Create and manages a hierarchical list. Each element of the list is

   h(k).name        = 'mike';
   h(k).parent      = '';
   h(k).child       = {'pete'};
   h(k).data        = ...;         Data can be anything.

   Initialize
   ----------
   tag = HierarchicalListPlugIn( 'initialize', h, figureHandle, position, callback )

   API
   ---
   HierarchicalListPlugIn( 'add',    tag, h ) 

Children:

Common: General/DeBlankLT
Common: General/GetListString