void (@NotNull AnActionEvent e) { final LayoutTreeSelection selection = myEditor.getLayoutTreeComponent().getSelection(); final PackagingElementNode<?> node = selection.getNodeIfSingle(); PackagingElement<?> element = selection.getElementIfSingle(); e.getPresentation().setEnabled(element instanceof ArtifactPackagingElement && node != null && node.getParentElement(element) != null); }