Method: MOVE_TOPIC_DOWNWARD
Method: SORT_TOPICS_BY_NAME
Method: TOPIC_IS_MOVABLE_DOWNWARD
Method: TOPIC_IS_MOVABLE_UPWARD
Method: MOVE_TOPIC_UPWARD
Method: MOVE_TOPIC_RIGHT
Method: TOPIC_IS_MOVABLE_LEFT
Method: MOVE_TOPIC_LEFT
Method: REFRESH_IPPE_TREE
Method: GET_IPPE_NODE_ATTRIBUTES
Method: GET_NODE_ATTRIBUTES