Method: BUILD_FIRST_HIERARCHIE
Method: HANDLE_ITEM_DOUBLE_CLICK
Method: ON_DRAG
Method: GET_NODE_LAYOUT
Method: ON_DROP
Method: CUT_CP_NODE
Method: CREATE_NODE
Method: COPY_CP_NODE
Method: SAVE_ME
Method: HANDLE_EXPAND_NO_CHILDREN
Method: COPY_FOLDER_OR_OBJECT
Method: ADD_NODE
Method: PASTE_CP_NODE
Method: ON_DROP_COMPLETE
Method: CLONE_FOLDER_OR_OBJECT
Method: ADD_CHILDREN
Method: DELETE_NODE