diff --git a/src/Plugin/Derivative/FormModeManagerLocalAction.php b/src/Plugin/Derivative/FormModeManagerLocalAction.php
index b4e356d..e726eff 100644
--- a/src/Plugin/Derivative/FormModeManagerLocalAction.php
+++ b/src/Plugin/Derivative/FormModeManagerLocalAction.php
@@ -50,37 +50,19 @@ class FormModeManagerLocalAction extends DeriverBase implements ContainerDeriver
     foreach ($form_modes_definitions as $entity_type_id => $form_modes) {
       foreach ($form_modes as $form_mode_name => $form_mode) {
         if ($this->formModeManager->hasActiveFormMode($entity_type_id, $form_mode_name)) {
-          $this->derivatives["form_mode_manager.{$form_mode['id']}"] = [
-            'route_name' => "form_mode_manager.$entity_type_id.add_page.$form_mode_name",
-            'title' => $this->t('Add @entity_label as @form_mode', [
-              '@form_mode' => $form_mode['label'],
-              '@entity_label' => $entity_type_id,
-            ]),
-            'route_parameters' => ['form_mode_name' => $form_mode_name],
-            'appears_on' => ["entity.{$entity_type_id}.collection"],
-            'cache_tags' => $this->formModeManager->getListCacheTags(),
-          ];
-
-          if ('user' === $entity_type_id) {
+
+          $this->setDefaultLocalTask($form_mode, $entity_type_id, $form_mode_name);
+
+          if ($this->isUserEntityType($entity_type_id)) {
             $this->derivatives["form_mode_manager.{$form_mode['id']}"]['route_name'] = "user.admin_create.$form_mode_name";
             unset($this->derivatives["form_mode_manager.{$form_mode['id']}"]['route_parameters']);
           }
 
-          if ('node' === $entity_type_id) {
-            $this->derivatives["form_mode_manager.{$form_mode['id']}"]['appears_on'] = ['system.admin_content'];
-          }
+          $this->setNodeEntityType($form_mode, $entity_type_id);
 
-          if ('media' === $entity_type_id) {
-            $this->derivatives["form_mode_manager.{$form_mode['id']}"]['appears_on'] = ['view.media.media_page_list'];
-          }
+          $this->setMediaEntityType($form_mode, $entity_type_id);
 
-          if ('taxonomy_term' === $entity_type_id) {
-            $this->derivatives["form_mode_manager.{$form_mode['id']}"]['appears_on'] = ['entity.taxonomy_vocabulary.overview_form'];
-            $this->derivatives["form_mode_manager.{$form_mode['id']}"]['title'] = $this->t('Add @entity_label as @form_mode', [
-              '@form_mode' => $form_mode['label'],
-              '@entity_label' => 'term',
-            ]);
-          }
+          $this->setTaxonomyTermEntityType($form_mode, $entity_type_id);
         }
       }
     }
@@ -88,4 +70,86 @@ class FormModeManagerLocalAction extends DeriverBase implements ContainerDeriver
     return $this->derivatives;
   }
 
+  /**
+   * Set default local task.
+   *
+   * @param array $form_mode
+   *   A form mode.
+   * @param string $entity_type_id
+   *   An entity type id.
+   * @param string $form_mode_name
+   *   A form mode name.
+   */
+  public function setDefaultLocalTask(array $form_mode, $entity_type_id, $form_mode_name) {
+    $this->derivatives["form_mode_manager.{$form_mode['id']}"] = [
+      'route_name' => "form_mode_manager.$entity_type_id.add_page.$form_mode_name",
+      'title' => $this->t('Add @entity_label as @form_mode', [
+        '@form_mode' => $form_mode['label'],
+        '@entity_label' => $entity_type_id,
+      ]),
+      'route_parameters' => ['form_mode_name' => $form_mode_name],
+      'appears_on' => ["entity.{$entity_type_id}.collection"],
+      'cache_tags' => $this->formModeManager->getListCacheTags(),
+    ];
+  }
+
+  /**
+   * Determine if the current entity type is 'user'.
+   *
+   * @param string $entity_type_id
+   *   An entity type id.
+   *
+   * @return bool
+   *   True if this $entity_type_id is user.
+   */
+  public function isUserEntityType($entity_type_id) {
+    return ('user' === $entity_type_id);
+  }
+
+  /**
+   * Set derivative the current entity type is 'node'.
+   *
+   * @param array $form_mode
+   *   A form mode.
+   * @param string $entity_type_id
+   *   An entity type id.
+   */
+  public function setNodeEntityType(array $form_mode, $entity_type_id) {
+    if ('node' === $entity_type_id) {
+      $this->derivatives["form_mode_manager.{$form_mode['id']}"]['appears_on'] = ['system.admin_content'];
+    }
+  }
+
+  /**
+   * Set derivative the current entity type is 'media'.
+   *
+   * @param array $form_mode
+   *   A form mode.
+   * @param string $entity_type_id
+   *   An entity type id.
+   */
+  public function setMediaEntityType(array $form_mode, $entity_type_id) {
+    if ('media' === $entity_type_id) {
+      $this->derivatives["form_mode_manager.{$form_mode['id']}"]['appears_on'] = ['view.media.media_page_list'];
+    }
+  }
+
+  /**
+   * Set derivative the current entity type is 'taxonomy_term'.
+   *
+   * @param array $form_mode
+   *   A form mode.
+   * @param string $entity_type_id
+   *   An entity type id.
+   */
+  public function setTaxonomyTermEntityType(array $form_mode, $entity_type_id) {
+    if ('taxonomy_term' === $entity_type_id) {
+      $this->derivatives["form_mode_manager.{$form_mode['id']}"]['appears_on'] = ['entity.taxonomy_vocabulary.overview_form'];
+      $this->derivatives["form_mode_manager.{$form_mode['id']}"]['title'] = $this->t('Add @entity_label as @form_mode', [
+        '@form_mode' => $form_mode['label'],
+        '@entity_label' => 'term',
+      ]);
+    }
+  }
+
 }
diff --git a/src/Plugin/Derivative/FormModeManagerLocalTasks.php b/src/Plugin/Derivative/FormModeManagerLocalTasks.php
index 62011ef..db3d204 100644
--- a/src/Plugin/Derivative/FormModeManagerLocalTasks.php
+++ b/src/Plugin/Derivative/FormModeManagerLocalTasks.php
@@ -16,6 +16,11 @@ class FormModeManagerLocalTasks extends DeriverBase implements ContainerDeriverI
   use StringTranslationTrait;
 
   /**
+   * The specific route name of block_content canonical.
+   */
+  const BLOCK_CONTENT_CANONICAL = 'entity.block_content.canonical';
+
+  /**
    * The Form Mode Manager service.
    *
    * @var \Drupal\form_mode_manager\FormModeManagerInterface
@@ -23,6 +28,20 @@ class FormModeManagerLocalTasks extends DeriverBase implements ContainerDeriverI
   protected $formModeManager;
 
   /**
+   * The Form Mode Manager service.
+   *
+   * @var string[]
+   */
+  protected $cacheTags;
+
+  /**
+   * The Form Mode Manager service.
+   *
+   * @var array
+   */
+  protected $formModesDefinitionsList;
+
+  /**
    * Constructs a new Form Mode ManagerLocalTasks.
    *
    * @param \Drupal\form_mode_manager\FormModeManagerInterface $form_mode_manager
@@ -30,6 +49,8 @@ class FormModeManagerLocalTasks extends DeriverBase implements ContainerDeriverI
    */
   public function __construct(FormModeManagerInterface $form_mode_manager) {
     $this->formModeManager = $form_mode_manager;
+    $this->cacheTags = $form_mode_manager->getListCacheTags();
+    $this->formModesDefinitionsList = $form_mode_manager->getAllFormModesDefinitions();
   }
 
   /**
@@ -46,55 +67,15 @@ class FormModeManagerLocalTasks extends DeriverBase implements ContainerDeriverI
    */
   public function getDerivativeDefinitions($base_plugin_definition) {
     $this->derivatives = [];
-    $form_modes_definitions = $this->formModeManager->getAllFormModesDefinitions();
-    $form_mode_manager_tags = $this->formModeManager->getListCacheTags();
-    // Add Taks on each entity_types compatible.
-    foreach ($form_modes_definitions as $entity_type_id => $form_modes) {
-      $is_primary_tasks = $this->formModeManager->tasksIsPrimary($entity_type_id);
-
-      $this->derivatives["form_mode_manager.$entity_type_id.default.task_tab"] = [
-        'route_name' => "entity.$entity_type_id.edit_form",
-        'title' => $this->t('Edit as Default'),
-        'parent_id' => "entity.$entity_type_id.edit_form",
-        'cache_tags' => $form_mode_manager_tags,
-      ];
-
-      // Special case for block_content entities.
-      if ('block_content' === $entity_type_id) {
-        $this->derivatives["form_mode_manager.$entity_type_id.default.task_tab"]['route_name'] = 'entity.block_content.canonical';
-        $this->derivatives["form_mode_manager.$entity_type_id.default.task_tab"]['parent_id'] = 'entity.block_content.canonical';
-      }
-
-      // Add one sub-task by form-mode active.
+    foreach ($this->formModesDefinitionsList as $entity_type_id => $form_modes) {
+      $this->setDefaultTasks($entity_type_id);
       foreach ($form_modes as $form_mode_name => $form_mode) {
         if ($this->formModeManager->hasActiveFormMode($entity_type_id, $form_mode_name)) {
-          $this->derivatives["form_mode_manager.{$form_mode['id']}.task_tab"] = [
-            'route_name' => "entity.$entity_type_id.edit_form.$form_mode_name",
-            'title' => $this->t('Edit as @form_mode', [
-              '@form_mode' => $form_mode['label'],
-            ]),
-            'parent_id' => "entity.$entity_type_id.edit_form",
-            'cache_tags' => $form_mode_manager_tags,
-          ];
-
-          if ('user' === $entity_type_id) {
-            $this->setUserRegisterTask($form_mode);
-          }
-
-          if ('block_content' === $entity_type_id) {
-            $this->derivatives["form_mode_manager.{$form_mode['id']}.task_tab"]['parent_id'] = 'entity.block_content.canonical';
-          }
-
-          // Evaluate if tasks does be displayed at the primary level.
-          if ($is_primary_tasks) {
-            $this->derivatives["form_mode_manager.{$form_mode['id']}.task_tab"]['base_route'] = "entity.$entity_type_id.canonical";
-            unset($this->derivatives["form_mode_manager.{$form_mode['id']}.task_tab"]['parent_id']);
-          }
+          $this->setFormModesTasks($form_mode, $entity_type_id, $this->formModeManager->tasksIsPrimary($entity_type_id));
         }
       }
     }
 
-    // Ensure Base Plugin Definition are added onto all derivatives.
     foreach ($this->derivatives as &$entry) {
       $entry += $base_plugin_definition;
     }
@@ -103,16 +84,101 @@ class FormModeManagerLocalTasks extends DeriverBase implements ContainerDeriverI
   }
 
   /**
+   * Set a Specific local tasks parameters for block_content entity.
+   *
+   * @param string $element_name
+   *   Name of element to enhance.
+   * @param string $entity_type_id
+   *   The definition of block_content tasks.
+   * @param bool $is_default_task
+   *   Determine context of tasks (defaults or form mode manager) derivative.
+   */
+  private function blockContentEnhancer($element_name, $entity_type_id, $is_default_task = TRUE) {
+    if ('block_content' === $entity_type_id) {
+      if ($is_default_task) {
+        $this->derivatives[$element_name]['route_name'] = self::BLOCK_CONTENT_CANONICAL;
+      }
+
+      $this->derivatives[$element_name]['parent_id'] = self::BLOCK_CONTENT_CANONICAL;
+    }
+  }
+
+  /**
+   * Set the default tasks on each entities.
+   *
+   * @param string $entity_type_id
+   *    The entity type ID.
+   */
+  private function setDefaultTasks($entity_type_id) {
+    $this->derivatives["form_mode_manager.$entity_type_id.default.task_tab"] = [
+      'route_name' => "entity.$entity_type_id.edit_form",
+      'title' => $this->t('Edit as Default'),
+      'parent_id' => "entity.$entity_type_id.edit_form",
+      'cache_tags' => $this->cacheTags,
+    ];
+
+    $element_name = "form_mode_manager.$entity_type_id.default.task_tab";
+    $this->blockContentEnhancer($element_name, $entity_type_id);
+  }
+
+  /**
+   * Set the default tasks on each entities.
+   *
+   * @param array $form_mode
+   *   An associative array represent a DisplayForm entity.
+   * @param string $entity_type_id
+   *    The entity type ID.
+   * @param bool $is_primary_tasks
+   *    True if we need to place tasks on primary level.
+   */
+  private function setFormModesTasks(array $form_mode, $entity_type_id, $is_primary_tasks) {
+    $this->setFormModesTasksBase($form_mode, $entity_type_id);
+    $this->setUserRegisterTasks($form_mode, $entity_type_id);
+
+    $element_name = "form_mode_manager.{$form_mode['id']}.task_tab";
+    $this->blockContentEnhancer($element_name, $entity_type_id, FALSE);
+
+    // Evaluate if tasks does be displayed at the primary level.
+    if ($is_primary_tasks) {
+      $this->derivatives[$element_name]['base_route'] = "entity.$entity_type_id.canonical";
+      unset($this->derivatives[$element_name]['parent_id']);
+    }
+  }
+
+  /**
+   * Set a Specific local tasks to `user.page` pages (register).
+   *
+   * @param array $form_mode
+   *   An associative array represent a DisplayForm entity.
+   * @param string $entity_type_id
+   *   The entity type ID.
+   */
+  private function setUserRegisterTasks(array $form_mode, $entity_type_id) {
+    if ('user' === $entity_type_id) {
+      $this->derivatives["form_mode_manager.{$form_mode['id']}.register_task_tab"] = [
+        'route_name' => "user.register.{$this->formModeManager->getFormModeMachineName($form_mode['id'])}",
+        'title' => $this->t('Create new account as @form_mode', ['@form_mode' => $form_mode['label']]),
+        'base_route' => "user.page",
+      ];
+    }
+  }
+
+  /**
    * Set a Specific local tasks to `user.page` pages (register).
    *
    * @param array $form_mode
-   *   The definition array of the base plugin.
+   *   An associative array represent a DisplayForm entity.
+   * @param string $entity_type_id
+   *   The entity type ID.
    */
-  private function setUserRegisterTask(array $form_mode) {
-    $this->derivatives["form_mode_manager.{$form_mode['id']}.register_task_tab"] = [
-      'route_name' => "user.register.{$this->formModeManager->getFormModeMachineName($form_mode['id'])}",
-      'title' => $this->t('Create new account as @form_mode', ['@form_mode' => $form_mode['label']]),
-      'base_route' => "user.page",
+  private function setFormModesTasksBase(array $form_mode, $entity_type_id) {
+    $this->derivatives["form_mode_manager.{$form_mode['id']}.task_tab"] = [
+      'route_name' => "entity.$entity_type_id.edit_form.{$this->formModeManager->getFormModeMachineName($form_mode['id'])}",
+      'title' => $this->t('Edit as @form_mode', [
+        '@form_mode' => $form_mode['label'],
+      ]),
+      'parent_id' => "entity.$entity_type_id.edit_form",
+      'cache_tags' => $this->cacheTags,
     ];
   }
 
diff --git a/src/Routing/RouteSubscriber.php b/src/Routing/RouteSubscriber.php
index 1e267c4..011c91d 100644
--- a/src/Routing/RouteSubscriber.php
+++ b/src/Routing/RouteSubscriber.php
@@ -174,7 +174,7 @@ class RouteSubscriber extends RouteSubscriberBase {
    *   The entity type definition. Useful when a single class is,
    *   used for multiple, possibly dynamic entity types.
    * @param array $form_mode
-   *   The operation array of form variation (form_mode).
+   *   An associative array represent a DisplayForm entity.
    *
    * @return \Symfony\Component\Routing\Route|null
    *   The generated route, if available.