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It works "by hand" but during automated GUI tests it might happen that more that one property is set to writeable state (see screenshot). What we do is: - find LazyToolTipSheetButton instance - send events to the instance MOUSE_ENTERED MOUSE_PRESSED MOUSE_RELEASED MOUSE_CLICKED
Created attachment 6189 [details] screen shot
Sorry but you cannot just "send events" to the component. The functionality is based on the fact that there are intervening focus lost events. We cannot halp you with this. Sorry.
Bad luck. Thus I am closing the issue.