diff --git a/core/modules/layout_builder/css/layout-builder.css b/core/modules/layout_builder/css/layout-builder.css
index 1e7fea35a4..ff443e5b78 100644
--- a/core/modules/layout_builder/css/layout-builder.css
+++ b/core/modules/layout_builder/css/layout-builder.css
@@ -239,7 +239,7 @@
   padding: 0 3px;
 }
 #drupal-off-canvas .layout-overview td .dropbutton-single .dropbutton-widget .dropbutton a {
-  margin-top: 0px;
+  margin-top: 0;
   color: #fff;
 }
 #drupal-off-canvas .layout-overview td .dropbutton-single .dropbutton-widget .dropbutton .dropbutton-action {
diff --git a/core/modules/layout_builder/src/Controller/OverviewController.php b/core/modules/layout_builder/src/Controller/OverviewController.php
index 841a855d55..3fbb770256 100644
--- a/core/modules/layout_builder/src/Controller/OverviewController.php
+++ b/core/modules/layout_builder/src/Controller/OverviewController.php
@@ -88,7 +88,6 @@ protected function getComponentOperations(SectionStorageInterface $section_stora
         'data-dialog-renderer' => 'off_canvas',
       ],
     ];
-    // @todo Add "move" operation https://www.drupal.org/project/drupal/issues/2995689.
     $operations['remove'] = [
       'title' => $this->t('Remove'),
       'url' => Url::fromRoute('layout_builder.remove_block', $route_parameters, $this->getOverviewOptions(TRUE)),
@@ -98,6 +97,15 @@ protected function getComponentOperations(SectionStorageInterface $section_stora
         'data-dialog-renderer' => 'off_canvas',
       ],
     ];
+    $operations['move'] = [
+      'title' => $this->t('Move'),
+      'url' => Url::fromRoute('layout_builder.move_block_form', $route_parameters, $this->getOverviewOptions(TRUE)),
+      'attributes' => [
+        'class' => ['use-ajax', 'move-block'],
+        'data-dialog-type' => 'dialog',
+        'data-dialog-renderer' => 'off_canvas',
+      ],
+    ];
     return $operations;
   }
 
@@ -152,7 +160,7 @@ protected function getSectionOperations(SectionStorageInterface $section_storage
    *   The section storage.
    * @param int $delta
    *   The delta of the section.
-   * @param $region
+   * @param string $region
    *   The region.
    *
    * @return array
@@ -251,6 +259,7 @@ protected function buildAdministrativeSection(SectionStorageInterface $section_s
       '#attributes' => [
         'class' => ['region-title'],
         'no_striping' => TRUE,
+        'data-section-delta' => $delta,
       ],
       'label' => [
         '#markup' => $layout_definition->getLabel(),
@@ -270,6 +279,9 @@ protected function buildAdministrativeSection(SectionStorageInterface $section_s
         'title' => [
           '#markup' => $layout_definition->getRegionLabels()[$region],
         ],
+        '#attributes' => [
+          'data-section-region-delta' => "$delta|$region",
+        ],
         'operations' => [
           '#type' => 'operations',
           '#links' => $this->getRegionOperations($section_storage, $delta, $region),
@@ -290,9 +302,13 @@ protected function buildAdministrativeSection(SectionStorageInterface $section_s
           $label = '@todo';
         }
 
+        $plugin_id = $component->getPluginId();
         $build["section-$delta-region-$region-uuid-$uuid"] = [
           'label' => [
-            '#markup' => $label . ' (' . $component->getPluginId() . ')',
+            '#markup' => "$label ($plugin_id)",
+          ],
+          '#attributes' => [
+            'data-section-region-block-delta' => "$delta|$region|$plugin_id",
           ],
           'operations' => [
             '#type' => 'operations',
diff --git a/core/modules/layout_builder/src/Element/LayoutBuilder.php b/core/modules/layout_builder/src/Element/LayoutBuilder.php
index f71afd4c1a..c98f1fcb8e 100644
--- a/core/modules/layout_builder/src/Element/LayoutBuilder.php
+++ b/core/modules/layout_builder/src/Element/LayoutBuilder.php
@@ -2,7 +2,6 @@
 
 namespace Drupal\layout_builder\Element;
 
-use Drupal\Component\Serialization\Json;
 use Drupal\Core\Ajax\AjaxHelperTrait;
 use Drupal\Core\Messenger\MessengerInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlockFormTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlockFormTest.php
index e8cf15f407..d7aeab204e 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlockFormTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlockFormTest.php
@@ -13,6 +13,7 @@
 class MoveBlockFormTest extends WebDriverTestBase {
 
   use ContextualLinkClickTrait;
+  use MoveBlocksTrait;
 
   /**
    * Path prefix for the field UI for the test bundle.
@@ -71,6 +72,7 @@ protected function setUp() {
     $assert_session->assertWaitOnAjaxRequest();
     $this->assertNotEmpty($assert_session->waitForElementVisible('css', 'input[value="Add section"]'));
     $page->pressButton('Add section');
+    $assert_session->assertNoElementAfterWait('css', '#drupal-off-canvas');
     $this->assertRegionBlocksOrder(1, 'content', $expected_block_order);
 
     // Add a 'Powered by Drupal' block in the 'first' region of the new section.
@@ -93,13 +95,14 @@ protected function setUp() {
   /**
    * Tests moving a block.
    */
-  public function testMoveBlock() {
+  public function testMAoveBlock() {
     $page = $this->getSession()->getPage();
 
     // Reorder body field in current region.
     $this->openBodyMoveForm(1, 'content', ['Links', 'Body (current)']);
     $this->moveBlockWithKeyboard('up', 'Body (current)', ['Body (current)*', 'Links']);
     $page->pressButton('Move');
+    $this->assertSession()->assertNoElementAfterWait('css', '#drupal-off-canvas');
     $expected_block_order = [
       '.block-field-blocknodebundle-with-section-fieldbody',
       '.block-extra-field-blocknodebundle-with-section-fieldlinks',
@@ -115,6 +118,7 @@ public function testMoveBlock() {
     $this->assertBlockTable(['Powered by Drupal', 'Body (current)']);
     $this->moveBlockWithKeyboard('up', 'Body', ['Body (current)*', 'Powered by Drupal']);
     $page->pressButton('Move');
+    $this->assertSession()->assertNoElementAfterWait('css', '#drupal-off-canvas');
     $expected_block_order = [
       '.block-field-blocknodebundle-with-section-fieldbody',
       '.block-system-powered-by-block',
@@ -132,116 +136,8 @@ public function testMoveBlock() {
     $page->selectFieldOption('Region', '0:second');
     $this->assertBlockTable(['Body (current)']);
     $page->pressButton('Move');
+    $this->assertSession()->assertNoElementAfterWait('css', '#drupal-off-canvas');
     $this->assertRegionBlocksOrder(0, 'second', ['.block-field-blocknodebundle-with-section-fieldbody']);
   }
 
-  /**
-   * Asserts the correct block labels appear in the draggable tables.
-   *
-   * @param string[] $expected_block_labels
-   *   The expected block labels.
-   */
-  protected function assertBlockTable(array $expected_block_labels) {
-    $page = $this->getSession()->getPage();
-    $this->assertSession()->assertWaitOnAjaxRequest();
-    $block_tds = $page->findAll('css', '.layout-builder-components-table__block-label');
-    $this->assertCount(count($block_tds), $expected_block_labels);
-    /** @var \Behat\Mink\Element\NodeElement $block_td */
-    foreach ($block_tds as $block_td) {
-      $this->assertSame(array_shift($expected_block_labels), trim($block_td->getText()));
-    }
-  }
-
-  /**
-   * Moves a block in the draggable table.
-   *
-   * @param string $direction
-   *   The direction to move the block in the table.
-   * @param string $block_label
-   *   The block label.
-   * @param array $updated_blocks
-   *   The updated blocks order.
-   */
-  protected function moveBlockWithKeyboard($direction, $block_label, array $updated_blocks) {
-    $keys = [
-      'up' => 38,
-      'down' => 40,
-    ];
-    $key = $keys[$direction];
-    $handle = $this->findRowHandle($block_label);
-
-    $handle->keyDown($key);
-    $handle->keyUp($key);
-
-    $handle->blur();
-    $this->assertBlockTable($updated_blocks);
-  }
-
-  /**
-   * Finds the row handle for a block in the draggable table.
-   *
-   * @param string $block_label
-   *   The block label.
-   *
-   * @return \Behat\Mink\Element\NodeElement
-   *   The row handle element.
-   */
-  protected function findRowHandle($block_label) {
-    $assert_session = $this->assertSession();
-    return $assert_session->elementExists('css', "[data-drupal-selector=\"edit-components\"] td:contains(\"$block_label\") a.tabledrag-handle");
-  }
-
-  /**
-   * Asserts that blocks are in the correct order for a region.
-   *
-   * @param int $section_delta
-   *   The section delta.
-   * @param string $region
-   *   The region.
-   * @param array $expected_block_selectors
-   *   The block selectors.
-   */
-  protected function assertRegionBlocksOrder($section_delta, $region, array $expected_block_selectors) {
-    $page = $this->getSession()->getPage();
-    $assert_session = $this->assertSession();
-
-    $assert_session->assertWaitOnAjaxRequest();
-    $assert_session->assertNoElementAfterWait('css', '#drupal-off-canvas');
-
-    $region_selector = "[data-layout-delta=\"$section_delta\"] [data-region=\"$region\"]";
-
-    // Get all blocks currently in the region.
-    $blocks = $page->findAll('css', "$region_selector [data-layout-block-uuid]");
-    $this->assertCount(count($expected_block_selectors), $blocks);
-
-    /** @var \Behat\Mink\Element\NodeElement $block */
-    foreach ($blocks as $block) {
-      $block_selector = array_shift($expected_block_selectors);
-      $assert_session->elementsCount('css', "$region_selector $block_selector", 1);
-      $expected_block = $page->find('css', "$region_selector $block_selector");
-      $this->assertSame($expected_block->getAttribute('data-layout-block-uuid'), $block->getAttribute('data-layout-block-uuid'));
-    }
-  }
-
-  /**
-   * Open block for the body field.
-   *
-   * @param int $delta
-   *   The section delta where the field should be.
-   * @param string $region
-   *   The region where the field should be.
-   * @param array $initial_blocks
-   *   The initial blocks that should be shown in the draggable table.
-   */
-  protected function openBodyMoveForm($delta, $region, array $initial_blocks) {
-    $assert_session = $this->assertSession();
-
-    $body_field_locator = "[data-layout-delta=\"$delta\"] [data-region=\"$region\"] .block-field-blocknodebundle-with-section-fieldbody";
-    $this->clickContextualLink($body_field_locator, 'Move');
-    $assert_session->assertWaitOnAjaxRequest();
-    $this->assertNotEmpty($assert_session->waitForElementVisible('named', ['select', 'Region']));
-    $assert_session->fieldValueEquals('Region', "$delta:$region");
-    $this->assertBlockTable($initial_blocks);
-  }
-
 }
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlocksTrait.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlocksTrait.php
new file mode 100644
index 0000000000..290808d90f
--- /dev/null
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlocksTrait.php
@@ -0,0 +1,115 @@
+<?php
+
+namespace Drupal\Tests\layout_builder\FunctionalJavascript;
+
+/**
+ * Trait for moving blocks in the Layout Builder UI.
+ */
+trait MoveBlocksTrait {
+
+  /**
+   * Moves a block in the draggable table.
+   *
+   * @param string $direction
+   *   The direction to move the block in the table.
+   * @param string $block_label
+   *   The block label.
+   * @param array $updated_blocks
+   *   The updated blocks order.
+   */
+  protected function moveBlockWithKeyboard($direction, $block_label, array $updated_blocks) {
+    $keys = [
+      'up' => 38,
+      'down' => 40,
+    ];
+    $key = $keys[$direction];
+    $handle = $this->findRowHandle($block_label);
+
+    $handle->keyDown($key);
+    $handle->keyUp($key);
+
+    $handle->blur();
+    $this->assertBlockTable($updated_blocks);
+  }
+
+  /**
+   * Finds the row handle for a block in the draggable table.
+   *
+   * @param string $block_label
+   *   The block label.
+   *
+   * @return \Behat\Mink\Element\NodeElement
+   *   The row handle element.
+   */
+  protected function findRowHandle($block_label) {
+    $assert_session = $this->assertSession();
+    return $assert_session->elementExists('css', "[data-drupal-selector=\"edit-components\"] td:contains(\"$block_label\") a.tabledrag-handle");
+  }
+
+  /**
+   * Asserts that blocks are in the correct order for a region.
+   *
+   * @param int $section_delta
+   *   The section delta.
+   * @param string $region
+   *   The region.
+   * @param array $expected_block_selectors
+   *   The block selectors.
+   */
+  protected function assertRegionBlocksOrder($section_delta, $region, array $expected_block_selectors) {
+    $page = $this->getSession()->getPage();
+    $assert_session = $this->assertSession();
+
+    $region_selector = "[data-layout-delta=\"$section_delta\"] [data-region=\"$region\"]";
+
+    // Get all blocks currently in the region.
+    $blocks = $page->findAll('css', "$region_selector [data-layout-block-uuid]");
+    $this->assertCount(count($expected_block_selectors), $blocks);
+
+    /** @var \Behat\Mink\Element\NodeElement $block */
+    foreach ($blocks as $block) {
+      $block_selector = array_shift($expected_block_selectors);
+      $assert_session->elementsCount('css', "$region_selector $block_selector", 1);
+      $expected_block = $page->find('css', "$region_selector $block_selector");
+      $this->assertSame($expected_block->getAttribute('data-layout-block-uuid'), $block->getAttribute('data-layout-block-uuid'));
+    }
+  }
+
+  /**
+   * Open block for the body field.
+   *
+   * @param int $delta
+   *   The section delta where the field should be.
+   * @param string $region
+   *   The region where the field should be.
+   * @param array $initial_blocks
+   *   The initial blocks that should be shown in the draggable table.
+   */
+  protected function openBodyMoveForm($delta, $region, array $initial_blocks) {
+    $assert_session = $this->assertSession();
+
+    $body_field_locator = "[data-layout-delta=\"$delta\"] [data-region=\"$region\"] .block-field-blocknodebundle-with-section-fieldbody";
+    $this->clickContextualLink($body_field_locator, 'Move');
+    $assert_session->assertWaitOnAjaxRequest();
+    $this->assertNotEmpty($assert_session->waitForElementVisible('named', ['select', 'Region']));
+    $assert_session->fieldValueEquals('Region', "$delta:$region");
+    $this->assertBlockTable($initial_blocks);
+  }
+
+  /**
+   * Asserts the correct block labels appear in the draggable tables.
+   *
+   * @param string[] $expected_block_labels
+   *   The expected block labels.
+   */
+  protected function assertBlockTable(array $expected_block_labels) {
+    $page = $this->getSession()->getPage();
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $block_tds = $page->findAll('css', '.layout-builder-components-table__block-label');
+    $this->assertCount(count($block_tds), $expected_block_labels);
+    /** @var \Behat\Mink\Element\NodeElement $block_td */
+    foreach ($block_tds as $block_td) {
+      $this->assertSame(array_shift($expected_block_labels), trim($block_td->getText()));
+    }
+  }
+}
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/OverviewUITest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/OverviewUITest.php
new file mode 100644
index 0000000000..226359589f
--- /dev/null
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/OverviewUITest.php
@@ -0,0 +1,246 @@
+<?php
+
+namespace Drupal\Tests\layout_builder\FunctionalJavascript;
+
+use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
+
+/**
+ * Tests the layout overview UI.
+ *
+ * @group layout_builder
+ */
+class OverviewUITest extends WebDriverTestBase {
+
+  use MoveBlocksTrait;
+
+  /**
+   * Path prefix for the field UI for the test bundle.
+   *
+   * @var string
+   */
+  const FIELD_UI_PREFIX = 'admin/structure/types/manage/bundle_with_section_field';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'layout_builder',
+    'block',
+    'node',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $this->createContentType(['type' => 'bundle_with_section_field']);
+
+    $this->drupalLogin($this->drupalCreateUser([
+      'configure any layout',
+      'create and edit custom blocks',
+      'administer node display',
+      'administer node fields',
+      'access contextual links',
+    ]));
+
+    // Enable layout builder.
+    $this->drupalPostForm(
+      static::FIELD_UI_PREFIX . '/display/default',
+      ['layout[enabled]' => TRUE],
+      'Save'
+    );
+  }
+
+  /**
+   * Perform layout operations via overview dialog.
+   */
+  public function testOperationsWithOverview() {
+    $assert_session = $this->assertSession();
+    $page = $this->getSession()->getPage();
+
+    $this->drupalGet(static::FIELD_UI_PREFIX . '/display/default/layout');
+
+    $this->openOverview();
+
+    $this->addSection('Two column', [
+      'configure_section' => [
+        'options' => [
+          'layout_settings[column_widths]' => '33-67',
+        ],
+      ],
+    ]);
+
+    $this->addBlock(0, 'first', 'Powered by Drupal', '.block-system-powered-by-block');
+    $this->addBlock(0, 'second', 'Changed', '.block-system-powered-by-block');
+
+    $this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', '.layout--twocol-section--33-67'));
+
+    $this->dropbuttonTask(0, 'first', 'system_powered_by_block', 'remove');
+    $assert_session->assertNoElementAfterWait('css', '.block-system-powered-by-block');
+    $this->dropbuttonTask(1, 'content', 'extra_field_block:node:bundle_with_section_field:links', 'configure', FALSE);
+    $page->fillField('settings[label]', 'Gold Star For Robot Boy');
+    $page->checkField('settings[label_display]');
+    $page->pressButton('Update');
+
+    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '#drupal-off-canvas #blocks'));
+    $this->assertTrue($assert_session->waitForText('Gold Star For Robot Boy'));
+
+    $expected_block_order = [
+      '.block-extra-field-blocknodebundle-with-section-fieldlinks',
+      '.block-field-blocknodebundle-with-section-fieldbody',
+    ];
+    $this->assertRegionBlocksOrder(1, 'content', $expected_block_order);
+    $this->dropbuttonTask(1, 'content', 'extra_field_block:node:bundle_with_section_field:links', 'move', FALSE);
+    $this->moveBlockWithKeyboard('down', 'Gold Star For Robot Boy (current)', ['Body', 'Gold Star For Robot Boy (current)*']);
+    $page->pressButton('Move');
+    $this->assertNotEmpty($assert_session->waitForElementVisible('css', '#drupal-off-canvas #blocks'));
+    $expected_block_order = [
+      '.block-field-blocknodebundle-with-section-fieldbody',
+      '.block-extra-field-blocknodebundle-with-section-fieldlinks',
+    ];
+    $this->assertRegionBlocksOrder(1, 'content', $expected_block_order);
+  }
+
+  /**
+   * Opens the overview dialog.
+   */
+  protected function openOverview() {
+    $this->getSession()->getPage()->clickLink('Layout overview');
+    $this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas #blocks'));
+  }
+
+  /**
+   * Add a section via the overview dialog.
+   *
+   * @param string $layout
+   *   The layout the section should use.
+   * @param array|bool $options
+   *   If the layout has options, set to true or an array with fields/values.
+   * @param int $delta
+   *   Where to add the section.
+   */
+  protected function addSection($layout, $options = [], $delta = 0) {
+    $number_of_sections_before = count($this->getSession()->getPage()->findAll('css', '.layout-builder__section'));
+    $add_section_links = $this->getSession()->getPage()->findAll('css', '#drupal-off-canvas #blocks .new-section__link');
+    $this->assertCount(2, $add_section_links);
+    $add_section_link = $add_section_links[$delta];
+    $add_section_link->click();
+    $this->assertNotEmpty($this->assertSession()->waitForElementVisible('named', ['link', $layout]));
+
+    $this->clickLink($layout);
+    if (!empty($options['configure_section'])) {
+      $add_section_confirm_button = $this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas [value="Add section"]');
+      $this->assertNotEmpty($add_section_confirm_button);
+      if (isset($options['configure_section']['options'])) {
+        foreach ($options['configure_section']['options'] as $field => $value) {
+          $this->getSession()->getPage()->findField($field)->setValue($value);
+        }
+      }
+      $add_section_confirm_button->click();
+    }
+
+    $this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas #blocks'));
+    $number_of_sections_after = count($this->getSession()->getPage()->findAll('css', '.layout-builder__section'));
+    $this->assertEqual($number_of_sections_after, $number_of_sections_before + 1);
+
+  }
+
+  /**
+   * Removes a section via the overview dialog.
+   *
+   * @param int $delta
+   *   The section to remove.
+   * @param bool $confirm_remove
+   *   Set to FALSE for this to stop at the confirmation dialog.
+   */
+  protected function removeSection($delta, $confirm_remove = TRUE) {
+    $remove_button = $this->getSession()->getPage()->find('css', "[data-section-delta='$delta'] .remove-section");
+    $this->assertNotEmpty($remove_button);
+    $remove_button->press();
+    $this->assertTrue($this->assertSession()->waitForText('Are you sure you want to remove section'));
+    if ($confirm_remove) {
+      $this->getSession()->getPage()->pressButton('Remove');
+      $this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas #blocks'));
+
+    }
+  }
+
+  /**
+   * Add a block via the overview dialog.
+   *
+   * @param int $delta
+   *   The section where the block is added.
+   * @param string $region
+   *   The region within the section where the block is added.
+   * @param string $block_name
+   *   The name of the block to add.
+   * @param string $locator
+   *   Optional - a css locator to assert exists after block is added.
+   */
+  protected function addBlock($delta, $region, $block_name, $locator = '') {
+    $add_button = $this->getSession()->getPage()->find('css', "[data-section-region-delta='$delta|$region'] .add-block a");
+    $this->assertNotEmpty($add_button);
+    $add_button->press();
+    $this->assertTrue($this->assertSession()->waitForText('Choose a block'));
+    $this->getSession()->getPage()->clickLink($block_name);
+    $this->assertTrue($this->assertSession()->waitForText('Add block'));
+    $add_block_confirm_button = $this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas [value="Add block"]');
+    $this->assertNotEmpty($add_block_confirm_button);
+    $add_block_confirm_button->press();
+    $this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas #blocks'));
+    if (!empty($locator)) {
+      $this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', $locator));
+    }
+  }
+
+  /**
+   * Clicks a dropbutton for a block in the overview dialog.
+   *
+   * @param int $delta
+   *   The section where the block is present.
+   * @param string $region
+   *   The region within the section where the block is present.
+   * @param string $plugin_id
+   *   The plugin id of the block.
+   * @param string $task
+   *   The dropbutton task to choose.
+   * @param bool $submit_with_defaults
+   *   When true, the task will be completed automatically. When false, the
+   *   this method will complete with the task's config form open.
+   */
+  protected function dropbuttonTask($delta, $region, $plugin_id, $task, $submit_with_defaults = TRUE) {
+    $block_locator = "[data-section-region-block-delta='$delta|$region|$plugin_id']";
+    $dropbutton = $this->getSession()->getPage()->find('css', "$block_locator .dropbutton-toggle button");
+    $this->assertNotEmpty($dropbutton);
+    $dropbutton->press();
+    $open_dropbutton = $this->assertSession()->waitForElementVisible('css', "$block_locator .open");
+    $this->assertNotEmpty($open_dropbutton);
+    $task_link = $open_dropbutton->find('css', ".$task-block");
+    $this->assertNotEmpty($task_link);
+    $task_link->click();
+    switch ($task) {
+      case 'configure':
+        $submit_button = $this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas [value="Update"]');
+        break;
+
+      case 'remove':
+        $submit_button = $this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas [value="Remove"]');
+        break;
+
+      case 'move':
+        $submit_button = $this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas [value="Move"]');
+        break;
+    }
+
+    // Use instead of assertNotEmpty as variable could potentially not exist.
+    $this->assertTrue(!empty($submit_button));
+
+    if ($submit_with_defaults) {
+      $submit_button->press();
+      $this->assertNotEmpty($this->assertSession()->waitForElementVisible('css', '#drupal-off-canvas #blocks'));
+    }
+  }
+
+}
diff --git a/core/themes/stable/css/layout_builder/layout-builder.css b/core/themes/stable/css/layout_builder/layout-builder.css
index 06b32a0eb4..a7aeb565ae 100644
--- a/core/themes/stable/css/layout_builder/layout-builder.css
+++ b/core/themes/stable/css/layout_builder/layout-builder.css
@@ -219,3 +219,35 @@
 .layout-builder-components-table .tabledrag-changed-warning {
   display: none !important;
 }
+
+.region-title__action {
+  display: inline-block;
+  margin-left: 1em; /* LTR */
+}
+[dir="rtl"] .region-title__action {
+  margin-left: 0;
+  margin-right: 1em;
+}
+
+/* @todo Open an issue to fix .dropbutton-single in off-canvas reset */
+#drupal-off-canvas .layout-overview td .dropbutton-single .dropbutton-widget .dropbutton {
+  width: auto;
+  margin-left: 5px;
+  margin-right: 5px;
+}
+#drupal-off-canvas .layout-overview td .dropbutton-single .dropbutton-widget {
+  padding: 0 3px;
+}
+#drupal-off-canvas .layout-overview td .dropbutton-single .dropbutton-widget .dropbutton a {
+  margin-top: 0;
+  color: #fff;
+}
+#drupal-off-canvas .layout-overview td .dropbutton-single .dropbutton-widget .dropbutton .dropbutton-action {
+  background: transparent;
+}
+
+.layout-overview .new-section {
+  margin-bottom: auto;
+  padding: 2px 0;
+  outline: none;
+}