Hi Hironmay-I tried the following:var nodeConf:NodeConfiguration =
chatModel.getNodeConfiguration("HISTORY_NODE_EVERYONE");nodeConf.persistItems
=false ;chatModel.setNodeConfiguration("HISTORY_NODE_EVERYONE",
nodeConf);and got this error :TypeError: Error #1009: Cannot access a
property or method of a null object reference.at
com.adobe.rtc.pods.simpleChatClasses::SimpleChatModel/getNodeConfiguration()[....SimpleChatModel.as:388]i
also tried unchecking persistItems for the history nodes in Node D...