public void doExecute(@NotNull final AnActionEvent event, final Map<String, Object> _params) {
    try {
      NodeHighlightManager highlightManager =
          ((EditorComponent) MapSequence.fromMap(_params).get("editorComponent"))
              .getHighlightManager();
      EditorMessageOwner messageOwner =
          ((EditorComponent) MapSequence.fromMap(_params).get("editorComponent"))
              .getHighlightMessagesOwner();

      Set<SNode> usages =
          FindUsagesManager.getInstance()
              .findUsages(
                  Collections.singleton(
                      SNodeOperations.getConceptDeclaration(
                          ((SNode) MapSequence.fromMap(_params).get("node")))),
                  SearchType.INSTANCES,
                  new ModelsOnlyScope(
                      ((SModelDescriptor) MapSequence.fromMap(_params).get("model"))),
                  null);
      for (SNode ref : SetSequence.fromSet(usages)) {
        if (ref.getContainingRoot()
            == ((EditorComponent) MapSequence.fromMap(_params).get("editorComponent"))
                .getRootCell()
                .getSNode()
                .getContainingRoot()) {
          highlightManager.mark(ref, HighlightConstants.INSTANCES_COLOR, "usage", messageOwner);
        }
      }
      highlightManager.repaintAndRebuildEditorMessages();
    } catch (Throwable t) {
      if (log.isErrorEnabled()) {
        log.error("User's action execute method failed. Action:" + "HighlightInstances", t);
      }
    }
  }
 public List<?> createParameterObjects(
     SNode node, IOperationContext operationContext, EditorContext editorContext) {
   SAbstractConcept concept =
       MetaAdapterFactory.getConcept(
           0x7a5dda6291404668L,
           0xab76d5ed1746f2b2L,
           0x111b251a62aL,
           "jetbrains.mps.lang.typesystem.structure.ReportErrorStatement");
   AbstractModule module = ((AbstractModule) SNodeOperations.getModel(node).getModule());
   Set<SNode> errorInstances =
       FindUsagesManager.getInstance()
           .findInstances(
               module.getScope(),
               Collections.singleton(concept),
               true,
               new EmptyProgressMonitor());
   return SetSequence.fromSet(errorInstances)
       .toListSequence()
       .select(
           new ISelector<SNode, SNode>() {
             public SNode select(SNode it) {
               return SNodeOperations.cast(
                   it,
                   MetaAdapterFactory.getConcept(
                       0x7a5dda6291404668L,
                       0xab76d5ed1746f2b2L,
                       0x111b251a62aL,
                       "jetbrains.mps.lang.typesystem.structure.ReportErrorStatement"));
             }
           })
       .toListSequence();
 }