I am looking to install Spark at my company, but one of the issues that records retention has is with the fact that users can choose whether or not they want to log their conversations with the chat history function. Is there a way to disable this feature? I created a logon script which automatically replaces the spark.properties file with another one which already has the chat function disabled, but users can still simply go on and switch the feature back on. I need to permanently disable this function. I haven't found a plugging either that can help with this, but if anyone knows someone who has created one please let me know.