public static void saveVariables() {
   VariablesManager vm = ScrollingMenuSign.getInstance().getVariablesManager();
   for (SMSVariables variables : vm.listVariables()) {
     save(variables);
   }
   Debugger.getInstance().debug("saved " + vm.listVariables().size() + " variable sets to file.");
 }
  public static void loadVariables() {
    VariablesManager vm = ScrollingMenuSign.getInstance().getVariablesManager();

    vm.clear();
    for (File f : DirectoryStructure.getVarsFolder().listFiles(ymlFilter)) {
      vm.load(f);
    }
    Debugger.getInstance()
        .debug("Loaded " + vm.listVariables().size() + " variable sets from file.");
  }