diff --git a/core/modules/shortcut/lib/Drupal/shortcut/Form/SetCustomize.php b/core/modules/shortcut/lib/Drupal/shortcut/Form/SetCustomize.php
new file mode 100644
index 0000000..29da4a8
--- /dev/null
+++ b/core/modules/shortcut/lib/Drupal/shortcut/Form/SetCustomize.php
@@ -0,0 +1,97 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\shortcut\Form\SetCustomize.
+ */
+
+namespace Drupal\shortcut\Form;
+
+use Drupal\Core\Entity\EntityFormController;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Builds the shortcut set customize form.
+ */
+class SetCustomize extends EntityFormController {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function form(array $form, array &$form_state) {
+    $form = parent::form($form, $form_state);
+    $form['shortcuts'] = array(
+      '#tree' => TRUE,
+      '#weight' => -20,
+    );
+
+    $form['shortcuts']['links'] = array(
+      '#type' => 'table',
+      '#header' => array(t('Name'), t('Weight'), t('Operations')),
+      '#empty' => t('No shortcuts available. @link', array('@link' => l(t('Add a shortcut'), 'admin/config/user-interface/shortcut/' . $this->entity->id() . '/add-link'))),
+      '#attributes' => array('id' => 'shortcuts'),
+      '#tabledrag' => array(
+        array('order', 'sibling', 'shortcut-weight'),
+      ),
+    );
+
+    foreach ($this->entity->links as $link) {
+      $mlid = $link->id();
+      $form['shortcuts']['links'][$mlid]['#attributes']['class'][] = 'draggable';
+      $form['shortcuts']['links'][$mlid]['name']['#markup'] = l($link->link_title, $link->link_path);
+      $form['shortcuts']['links'][$mlid]['#weight'] = $link->weight;
+      $form['shortcuts']['links'][$mlid]['weight'] = array(
+        '#type' => 'weight',
+        '#title' => t('Weight for @title', array('@title' => $link->link_title)),
+        '#title_display' => 'invisible',
+        '#default_value' => $link->weight,
+        '#attributes' => array('class' => array('shortcut-weight')),
+      );
+
+      $links['edit'] = array(
+        'title' => t('Edit'),
+        'href' => "admin/config/user-interface/shortcut/link/$mlid",
+      );
+      $links['delete'] = array(
+        'title' => t('Delete'),
+        'href' => "admin/config/user-interface/shortcut/link/$mlid/delete",
+      );
+      $form['shortcuts']['links'][$mlid]['operations'] = array(
+        '#type' => 'operations',
+        '#links' => $links,
+      );
+    }
+    // Sort the list so the output is ordered by weight.
+    uasort($form['shortcuts']['links'], 'element_sort');
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function actions(array $form, array &$form_state) {
+    // Only includes a Save action for the entity, no direct Delete button.
+    return array(
+      'submit' => array(
+        '#value' => t('Save changes'),
+        '#access' => !empty($this->entity->links),
+        '#submit' => array(
+          array($this, 'submit'),
+          array($this, 'save'),
+        ),
+      ),
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function save(array $form, array &$form_state) {
+    foreach ($this->entity->links as $link) {
+      $link->weight = $form_state['values']['shortcuts']['links'][$link->mlid]['weight'];
+      $link->save();
+    }
+    drupal_set_message(t('The shortcut set has been updated.'));
+  }
+
+}
diff --git a/core/modules/shortcut/lib/Drupal/shortcut/Plugin/Core/Entity/Shortcut.php b/core/modules/shortcut/lib/Drupal/shortcut/Plugin/Core/Entity/Shortcut.php
index 5b3f17a..3c9bd1c 100644
--- a/core/modules/shortcut/lib/Drupal/shortcut/Plugin/Core/Entity/Shortcut.php
+++ b/core/modules/shortcut/lib/Drupal/shortcut/Plugin/Core/Entity/Shortcut.php
@@ -27,6 +27,7 @@
  *     "form" = {
  *       "default" = "Drupal\shortcut\ShortcutFormController",
  *       "edit" = "Drupal\shortcut\ShortcutFormController",
+ *       "customize" = "Drupal\shortcut\Form\SetCustomize",
  *       "delete" = "Drupal\shortcut\Form\ShortcutDeleteForm"
  *     }
  *   },
diff --git a/core/modules/shortcut/shortcut.admin.inc b/core/modules/shortcut/shortcut.admin.inc
index d2d3a60..a75c4e1 100644
--- a/core/modules/shortcut/shortcut.admin.inc
+++ b/core/modules/shortcut/shortcut.admin.inc
@@ -180,130 +180,6 @@ function shortcut_set_add() {
 }
 
 /**
- * Form callback: builds the form for customizing shortcut sets.
- *
- * @param $form
- *   An associative array containing the structure of the form.
- * @param $form_state
- *   An associative array containing the current state of the form.
- * @param $shortcut_set Drupal\shortcut\Plugin\Core\Entity\Shortcut
- *   An object representing the shortcut set which is being edited.
- *
- * @return
- *   An array representing the form definition.
- *
- * @ingroup forms
- * @see shortcut_set_customize_submit()
- */
-function shortcut_set_customize($form, &$form_state, $shortcut_set) {
-  $form['#shortcut_set_name'] = $shortcut_set->id();
-  $form['shortcuts'] = array(
-    '#tree' => TRUE,
-    '#weight' => -20,
-    'links' => array(),
-  );
-
-  foreach ($shortcut_set->links as $uuid => $link) {
-    $mlid = $link['mlid'];
-    $form['shortcuts']['links'][$mlid]['name']['#markup'] = l($link['link_title'], $link['link_path']);
-    $form['shortcuts']['links'][$mlid]['weight'] = array(
-      '#type' => 'weight',
-      '#title' => t('Weight for @title', array('@title' => $link['link_title'])),
-      '#title_display' => 'invisible',
-      '#delta' => 50,
-      '#default_value' => $link['weight'],
-      '#attributes' => array('class' => array('shortcut-weight')),
-    );
-
-    $links['edit'] = array(
-      'title' => t('Edit'),
-      'href' => "admin/config/user-interface/shortcut/link/$mlid",
-    );
-    $links['delete'] = array(
-      'title' => t('Delete'),
-      'href' => "admin/config/user-interface/shortcut/link/$mlid/delete",
-    );
-    $form['shortcuts']['links'][$mlid]['operations'] = array(
-      '#type' => 'operations',
-      '#links' => $links,
-    );
-  }
-
-  $form['actions'] = array(
-    '#type' => 'actions',
-    '#access' => !empty($shortcut_set->links),
-  );
-  $form['actions']['submit'] = array(
-    '#type' => 'submit',
-    '#value' => t('Save changes'),
-  );
-
-  return $form;
-}
-
-/**
- * Submit handler for shortcut_set_customize().
- */
-function shortcut_set_customize_submit($form, &$form_state) {
-  foreach ($form_state['values']['shortcuts']['links'] as $mlid => $data) {
-    $link = menu_link_load($mlid);
-    $link['weight'] = $data['weight'];
-    menu_link_save($link);
-  }
-  drupal_set_message(t('The shortcut set has been updated.'));
-}
-
-/**
- * Returns HTML for a shortcut set customization form.
- *
- * @param $variables
- *   An associative array containing:
- *   - form: A render element representing the form.
- *
- * @see shortcut_set_customize()
- * @ingroup themeable
- */
-function theme_shortcut_set_customize($variables) {
-  $form = $variables['form'];
-
-  // Do not add any rows to the table if there are no shortcuts to display.
-  $statuses = empty($shortcuts_by_status['enabled']) && empty($shortcuts_by_status['disabled']) ? array() : array_keys($shortcuts_by_status);
-
-  $rows = array();
-  drupal_add_tabledrag('shortcuts', 'order', 'sibling', 'shortcut-weight');
-  foreach (element_children($form['shortcuts']['links']) as $key) {
-    $shortcut = &$form['shortcuts']['links'][$key];
-    $row = array();
-    $row[] = drupal_render($shortcut['name']);
-    $row[] = drupal_render($shortcut['weight']);
-    $row[] = drupal_render($shortcut['operations']);
-    $rows[] = array(
-      'data' => $row,
-      'class' => array('draggable'),
-    );
-  }
-
-  $header = array(t('Name'), t('Weight'), t('Operations'));
-
-  $table = array(
-    '#theme' => 'table',
-    '#header' => $header,
-    '#rows' => $rows,
-    '#empty' => t('No shortcuts available. <a href="@link">Add a shortcut</a>.', array(
-      '@link' => url('admin/config/user-interface/shortcut/manage/' . $form['#shortcut_set_name'] . '/add-link'),
-    )),
-    '#attributes' => array(
-      'id' => 'shortcuts',
-    ),
-  );
-
-  $output = drupal_render($table);
-  $output .= drupal_render($form['actions']);
-  $output = drupal_render_children($form) . $output;
-  return $output;
-}
-
-/**
  * Form callback: builds the form for adding a new shortcut link.
  *
  * @param $form
diff --git a/core/modules/shortcut/shortcut.module b/core/modules/shortcut/shortcut.module
index d49ce04..e852a8e 100644
--- a/core/modules/shortcut/shortcut.module
+++ b/core/modules/shortcut/shortcut.module
@@ -98,13 +98,9 @@ function shortcut_menu() {
   );
   $items['admin/config/user-interface/shortcut/manage/%shortcut_set'] = array(
     'title' => 'Edit shortcuts',
-    'page callback' => 'drupal_get_form',
-    'page arguments' => array('shortcut_set_customize', 5),
+    'route_name' => 'shortcut_set_customize',
     'title callback' => 'entity_page_label',
     'title arguments' => array(5),
-    'access callback' => 'shortcut_set_edit_access',
-    'access arguments' => array(5),
-    'file' => 'shortcut.admin.inc',
   );
   $items['admin/config/user-interface/shortcut/manage/%shortcut_set/links'] = array(
     'title' => 'List links',
@@ -165,18 +161,6 @@ function shortcut_admin_paths() {
 }
 
 /**
- * Implements hook_theme().
- */
-function shortcut_theme() {
-  return array(
-    'shortcut_set_customize' => array(
-      'render element' => 'form',
-      'file' => 'shortcut.admin.inc',
-    ),
-  );
-}
-
-/**
  * Access callback for editing a shortcut set.
  *
  * @param $shortcut_set Drupal\shortcut\Plugin\Core\Entity\Shortcut
diff --git a/core/modules/shortcut/shortcut.routing.yml b/core/modules/shortcut/shortcut.routing.yml
index df1dc1c..dbd1376 100644
--- a/core/modules/shortcut/shortcut.routing.yml
+++ b/core/modules/shortcut/shortcut.routing.yml
@@ -32,3 +32,10 @@ shortcut_link_add_inline:
     _controller: 'Drupal\shortcut\Controller\ShortcutController::addShortcutLinkInline'
   requirements:
     _entity_access: 'shortcut.update'
+
+shortcut_set_customize:
+  pattern: '/admin/config/user-interface/shortcut/manage/{shortcut}'
+  defaults:
+    _entity_form: 'shortcut.customize'
+  requirements:
+    _entity_access: 'shortcut.update'