diff --git a/src/Macros/CrudNavMacro.php b/src/Macros/CrudNavMacro.php
index 5a03217..78154ff 100644
--- a/src/Macros/CrudNavMacro.php
+++ b/src/Macros/CrudNavMacro.php
@@ -17,10 +17,19 @@ public function register()
         CrudShow::macro('nav', function ($name, Closure $closure = null) {
             return $this->list($name)->previewTitle('{title}')->form(function ($form) use ($closure) {
                 // Title field.
-                $form->input('title')->title('Link Text')->translatable();
+                $form->input('title')->title('Link Text')->translatable()->width(8);
+                
+                // External.
+                $form->boolean('external')->title('External Link');
 
                 // Route field.
-                $form->route('route')->title('Route')->collection('app')->allowEmpty();
+                $form->route('route')->title('Route (intern)')->collection('app')->allowEmpty()->when('external', false);
+
+                // URL field.
+                $form->input('url')->title('URL (extern)')->when('external', true);
+
+                // _blank boolean.
+                $form->boolean('target_blank');
 
                 // Next we are allowing to append field by passing the form to
                 // a closure if given.