Setting Save Rule Set Minimized to Yes (default is No) will allow you to save your Rule Set without any unused features, variables, arrays and so on, that are not necessary to execute the Rule Set. Saving your minimized Rule Set will reduce the size (memory wise) and also clean it from non-used features. To enable Save Rule Set Minimized , please go to the Tools menu > Options and simply change this from "No" to "Yes". Have a good time saving your minimized Rule Sets!