Method: DELETE_BOL_OBJECT_FROM_MODEL
Method: ON_TREE_EXPAND_NC
Method: ON_OBJECT_ADDED
Method: ON_TREE_NODE_DOUBLE_CLICK
Method: CHECK
Method: ADD_BOL_OBJECT_TO_MODEL
Method: CONSTRUCTOR
Method: FREE
Method: ON_TOOLBAR_FUNCTION_SELECTED
Method: INIT_DISPLAY
Method: GET_NODE_PATH
Method: ADD_NODE