.../EntityReferenceEntityFormatter.php             | 32 ++++++++++++++++------
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceEntityFormatter.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceEntityFormatter.php
index 221776b..555560a 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceEntityFormatter.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/EntityReferenceEntityFormatter.php
@@ -134,10 +134,18 @@ public function settingsForm(array $form, FormStateInterface $form_state) {
     $bundle_entity_type_id = $this->entityTypeManager->getDefinition($entity_type_id)->getBundleEntityType();
     $bundles = array_keys($this->getFieldSetting('handler_settings')['target_bundles']);
     if (count($bundles) === 1) {
-      $description = Link::fromTextAndUrl(
-        $this->t('Configure view modes'),
-        Url::fromRoute(sprintf('entity.entity_view_display.%s.default', $entity_type_id), [$bundle_entity_type_id => $bundles[0]])
-      )->toRenderable();
+      $description = [
+        '#type' => 'link',
+        '#title' => $this->t('Configure view modes'),
+        '#url' => Url::fromRoute(sprintf('entity.entity_view_display.%s.default', $entity_type_id), [$bundle_entity_type_id => $bundles[0]]),
+        '#attributes' => [
+          'class' => ['use-ajax'],
+          'data-dialog-type' => 'modal',
+          'data-dialog-options' => json_encode([
+            'width' => 800,
+          ]),
+        ],
+      ];
     }
     else {
       $bundle_info = entity_get_bundles($entity_type_id);
@@ -147,10 +155,18 @@ public function settingsForm(array $form, FormStateInterface $form_state) {
         '#items' => [],
       ];
       for ($i = 0; $i < count($bundles); $i++) {
-        $description['#items'][] = Link::fromTextAndUrl(
-          $this->t('Configure %bundle-label view modes', ['%bundle-label' => $bundle_info[$bundles[$i]]['label']]),
-          Url::fromRoute(sprintf('entity.entity_view_display.%s.default', $entity_type_id), [$bundle_entity_type_id => $bundles[$i]])
-        )->toRenderable();
+        $description['#items'][] = [
+          '#type' => 'link',
+          '#title' => $this->t('Configure %bundle-label view modes', ['%bundle-label' => $bundle_info[$bundles[$i]]['label']]),
+          '#url' => Url::fromRoute(sprintf('entity.entity_view_display.%s.default', $entity_type_id), [$bundle_entity_type_id => $bundles[$i]]),
+          '#attributes' => [
+            'class' => ['use-ajax'],
+            'data-dialog-type' => 'modal',
+            'data-dialog-options' => json_encode([
+              'width' => 800,
+            ]),
+          ],
+        ];
       }
     }
     $elements['view_mode'] = [