Method: GET_KEY
Method: CHECK
Method: ON_TOOLBAR_DROPDOWN
Method: BUILD_TREE_FROM_EXTENSION
Method: GET_TYPE_TEXT
Method: ON_ELEMENT_DELETED
Method: INIT_DISPLAY
Method: ADD_ELEMENT
Method: ON_TREE_EXPAND_NC
Method: ON_TOOLBAR_FUNCTION_SELECTED
Method: ON_ELEMENT_CHILD_ADDED
Method: FREE
Method: CLASS_CONSTRUCTOR
Method: GET_UI_GEN_FOR_DISPLAY