diff --git a/modules/backend/behaviors/FormController.php b/modules/backend/behaviors/FormController.php
index 83923b910..1d7d3d7e0 100644
--- a/modules/backend/behaviors/FormController.php
+++ b/modules/backend/behaviors/FormController.php
@@ -23,6 +23,21 @@ use Exception;
  */
 class FormController extends ControllerBehavior
 {
+    /**
+     * @var string Default context for "create" pages.
+     */
+    const CONTEXT_CREATE = 'create';
+
+    /**
+     * @var string Default context for "update" pages.
+     */
+    const CONTEXT_UPDATE = 'update';
+
+    /**
+     * @var string Default context for "preview" pages.
+     */
+    const CONTEXT_PREVIEW = 'preview';
+
     /**
      * @var Backend\Classes\WidgetBase Reference to the widget object.
      */
@@ -80,7 +95,22 @@ class FormController extends ControllerBehavior
     {
         $context = $this->formGetContext();
 
-        $config = $this->makeConfig($this->config->form);
+        /*
+         * Each page can supply a unique form definition, if desired
+         */
+        $formFields = $this->config->form;
+
+        if ($context == self::CONTEXT_CREATE) {
+            $formFields = $this->getConfig('create[form]', $formFields);
+        }
+        elseif ($context == self::CONTEXT_UPDATE) {
+            $formFields = $this->getConfig('update[form]', $formFields);
+        }
+        elseif ($context == self::CONTEXT_PREVIEW) {
+            $formFields = $this->getConfig('preview[form]', $formFields);
+        }
+
+        $config = $this->makeConfig($formFields);
         $config->model = $model;
         $config->arrayName = class_basename($model);
         $config->context = $context;
@@ -140,7 +170,7 @@ class FormController extends ControllerBehavior
     public function create($context = null)
     {
         try {
-            $this->context = strlen($context) ? $context : $this->getConfig('create[context]', 'create');
+            $this->context = strlen($context) ? $context : $this->getConfig('create[context]', self::CONTEXT_CREATE);
             $this->controller->pageTitle = $this->controller->pageTitle ?: $this->getLang(
                 'create[title]',
                 'backend::lang.form.create_title'
@@ -160,7 +190,7 @@ class FormController extends ControllerBehavior
      */
     public function create_onSave($context = null)
     {
-        $this->context = strlen($context) ? $context : $this->getConfig('create[context]', 'create');
+        $this->context = strlen($context) ? $context : $this->getConfig('create[context]', self::CONTEXT_CREATE);
         $model = $this->controller->formCreateModelObject();
         $this->initForm($model);
 
@@ -195,7 +225,7 @@ class FormController extends ControllerBehavior
     public function update($recordId = null, $context = null)
     {
         try {
-            $this->context = strlen($context) ? $context : $this->getConfig('update[context]', 'update');
+            $this->context = strlen($context) ? $context : $this->getConfig('update[context]', self::CONTEXT_UPDATE);
             $this->controller->pageTitle = $this->controller->pageTitle ?: $this->getLang(
                 'update[title]',
                 'backend::lang.form.update_title'
@@ -216,7 +246,7 @@ class FormController extends ControllerBehavior
      */
     public function update_onSave($recordId = null, $context = null)
     {
-        $this->context = strlen($context) ? $context : $this->getConfig('update[context]', 'update');
+        $this->context = strlen($context) ? $context : $this->getConfig('update[context]', self::CONTEXT_UPDATE);
         $model = $this->controller->formFindModelObject($recordId);
         $this->initForm($model);
 
@@ -245,7 +275,7 @@ class FormController extends ControllerBehavior
      */
     public function update_onDelete($recordId = null)
     {
-        $this->context = $this->getConfig('update[context]', 'update');
+        $this->context = $this->getConfig('update[context]', self::CONTEXT_UPDATE);
         $model = $this->controller->formFindModelObject($recordId);
         $this->initForm($model);
 
@@ -273,7 +303,7 @@ class FormController extends ControllerBehavior
     public function preview($recordId = null, $context = null)
     {
         try {
-            $this->context = strlen($context) ? $context : $this->getConfig('preview[context]', 'preview');
+            $this->context = strlen($context) ? $context : $this->getConfig('preview[context]', self::CONTEXT_PREVIEW);
             $this->controller->pageTitle = $this->controller->pageTitle ?: $this->getLang(
                 'preview[title]',
                 'backend::lang.form.preview_title'