Method: DETERMINE_VISIBLE_NODES
Method: COLLAPSE_NODE_COMPLETELY
Method: EXPAND_NODE
Method: HAS_CHANGES
Method: EXPAND_NODE_COMPLETELY
Method: ON_EXPANDER_CLICK
Method: UPDATE_CHANGED
Method: DETERMINE_NEIGHBOUR_NODES
Method: GET_NODES_OF_CREATED_OBJECTS
Method: COLLECT_SUBNODES