Tree Coords in expand/contract symbol? in User Interface Posted October 9, 2018 · Report reply 3 hours ago, hooovahh said: There are private events on the tree for Item Close? and Item Open? which is a filtering event and allows you to discard the open and close. You need the super special private special stuff INI to access these. Then I'd recommend turning that INI off after. From what I can tell, the Item Close(?) and Item Open(?) events are not private. Maybe they were in a previous LabVIEW release?