private StdArrangementSettings createSettings() {
   final List<ArrangementGroupingRule> groupingRules = myGroupingRulesPanel.getRules();
   final List<ArrangementSectionRule> sections = myMatchingRulesPanel.getSections();
   final Collection<StdArrangementRuleAliasToken> tokens = myMatchingRulesPanel.getRulesAliases();
   if (tokens != null) {
     return new StdArrangementExtendableSettings(groupingRules, sections, tokens);
   }
   return new StdArrangementSettings(groupingRules, sections);
 }