diff --git a/src/Plugin/Block/MenuBlock.php b/src/Plugin/Block/MenuBlock.php
index fab522a..5d94c95 100644
--- a/src/Plugin/Block/MenuBlock.php
+++ b/src/Plugin/Block/MenuBlock.php
@@ -41,17 +41,78 @@ class MenuBlock extends SystemMenuBlock {
       '#description' => $this->t('All menu links that have children will "Show as expanded".'),
     ];
 
+    $form['advanced']['expand_only_active_trails'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t('<strong>Expand only active tree</strong>'),
+      '#default_value' => $config['expand_only_active_trails'],
+      '#description' => $this->t('All menu links that are in active trails will "Show as expanded".'),
+      '#states' => [
+        'visible' => [
+          ':input[name="settings[expand]"]' => ['checked' => TRUE],
+        ]
+      ]
+    ];
+
     $menu_name = $this->getDerivativeId();
     $menus = Menu::loadMultiple(array($menu_name));
     $menus[$menu_name] = $menus[$menu_name]->label();
 
     /** @var \Drupal\Core\Menu\MenuParentFormSelectorInterface $menu_parent_selector */
     $menu_parent_selector = \Drupal::service('menu.parent_form_selector');
-    $form['advanced']['parent'] = $menu_parent_selector->parentSelectElement($config['parent'], '', $menus);
+    if (strpos($config['parent'], 'active_trail') === FALSE) {
+      $form['advanced']['parent'] = $menu_parent_selector->parentSelectElement($config['parent'], '', $menus);
+    }
+    else {
+      $form['advanced']['parent'] = [
+        '#type' => 'select',
+        '#options' => $menu_parent_selector->getParentSelectOptions('', $menus),
+        '#default_value' => $config['parent'],
+      ];
+    }
+    $form['advanced']['parent']['#options'] += [
+      $menu_name . ':active_trail' => $this->t('<Active trail>')->render(),
+      $menu_name . ':active_trail_parent' => $this->t('<Active trail parent>')->render(),
+      $menu_name . ':active_trail_custom' => $this->t('<Active trail custom depth>')->render(),
+    ];
 
     $form['advanced']['parent'] += [
       '#title' => $this->t('Fixed parent item'),
       '#description' => $this->t('Alter the options in “Menu levels” to be relative to the fixed parent item. The block will only contain children of the selected menu link.'),
+      '#attributes' => [
+        'class' => ['active-trail'],
+      ],
+    ];
+
+    $custom_level_options = function() {
+      $options = range(0,9);
+      return array_combine($options, $options);
+    };
+
+    $form['advanced']['custom_level'] = [
+      '#type' => 'select',
+      '#title' => $this->t('Set custom depth, set dynamically relative to the active trail.'),
+      '#default_value' => $config['custom_level'],
+      '#options' => $custom_level_options(),
+      '#states' => [
+        'visible' => [
+          '.active-trail' => ['value' => $menu_name . ':active_trail_custom'],
+        ],
+      ],
+    ];
+
+    $form['advanced']['hide_children'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t('Hide children of parent in active trail?'),
+      '#default_value' => $config['hide_children'],
+      '#states' => [
+        'visible' => [
+          '.active-trail' => [
+            ['value' => $menu_name . ':active_trail'],
+            ['value' => $menu_name . ':active_trail_parent'],
+            ['value' => $menu_name . ':active_trail_custom'],
+          ],
+        ],
+      ],
     ];
 
     $form['style'] = [
@@ -99,8 +160,11 @@ class MenuBlock extends SystemMenuBlock {
    */
   public function blockSubmit($form, FormStateInterface $form_state) {
     $this->configuration['level'] = $form_state->getValue('level');
+    $this->configuration['custom_level'] = $form_state->getValue('custom_level');
+    $this->configuration['hide_children'] = $form_state->getValue('hide_children');
     $this->configuration['depth'] = $form_state->getValue('depth');
     $this->configuration['expand'] = $form_state->getValue('expand');
+    $this->configuration['expand_only_active_trails'] = $form_state->getValue('expand_only_active_trails');
     $this->configuration['parent'] = $form_state->getValue('parent');
     $this->configuration['suggestion'] = $form_state->getValue('suggestion');
   }
@@ -114,11 +178,21 @@ class MenuBlock extends SystemMenuBlock {
 
     // Adjust the menu tree parameters based on the block's configuration.
     $level = $this->configuration['level'];
+    $custom_level = $this->configuration['custom_level'];
     $depth = $this->configuration['depth'];
     $expand = $this->configuration['expand'];
+    $expand_only_active_trails = $this->configuration['expand_only_active_trails'];
     $parent = $this->configuration['parent'];
+    $hide_children = $this->configuration['hide_children'];
     $suggestion = $this->configuration['suggestion'];
 
+    $trail_ids = $this->menuActiveTrail->getActiveTrailIds($menu_name);
+    $trail_ids = array_reverse(array_filter($trail_ids));
+
+    if ($parent == $menu_name . ':' . 'active_trail_custom') {
+      $level = $this->setActiveTrailLevel($level, $custom_level, $trail_ids);
+    }
+
     $parameters->setMinDepth($level);
     // When the depth is configured to zero, there is no depth limit. When depth
     // is non-zero, it indicates the number of levels that must be displayed.
@@ -128,29 +202,47 @@ class MenuBlock extends SystemMenuBlock {
       $parameters->setMaxDepth(min($level + $depth - 1, $this->menuTree->maxDepth()));
     }
     // If expandedParents is empty, the whole menu tree is built.
-    if ($expand) {
+    if ($expand && !$expand_only_active_trails) {
       $parameters->expandedParents = array();
     }
     // When a fixed parent item is set, root the menu tree at the given ID.
     if ($menuLinkID = str_replace($menu_name . ':', '', $parent)) {
-      $parameters->setRoot($menuLinkID);
-
-      // If the starting level is 1, we always want the child links to appear,
-      // but the requested tree may be empty if the tree does not contain the
-      // active trail.
-      if ($level === 1 || $level === '1') {
-        // Check if the tree contains links.
-        $tree = $this->menuTree->load(NULL, $parameters);
-        if (empty($tree)) {
-          // Change the request to expand all children and limit the depth to
-          // the immediate children of the root.
-          $parameters->expandedParents = array();
-          $parameters->setMinDepth(1);
-          $parameters->setMaxDepth(1);
-          // Re-load the tree.
+      if (strpos($menuLinkID, 'custom') == FALSE) {
+        // Active trail or Active trail parent option.
+        if (strpos($menuLinkID, 'active_trail') !== FALSE) {
+          // $trail_ids = $this->menuActiveTrail->getActiveTrailIds($menu_name);
+          // $trail_ids = array_reverse(array_filter($trail_ids));
+          if ($menuLinkID == 'active_trail') {
+            $menuLinkID = end($trail_ids);
+          }
+          // Active trail parent.
+          else {
+            array_pop($trail_ids);
+            $menuLinkID = end($trail_ids);
+          }
+        }
+        if ($menuLinkID) {
+          $parameters->setRoot($menuLinkID);
+        }
+
+        // If the starting level is 1, we always want the child links to appear,
+        // but the requested tree may be empty if the tree does not contain the
+        // active trail.
+        if ($level === 1 || $level === '1') {
+          // Check if the tree contains links.
           $tree = $this->menuTree->load(NULL, $parameters);
+          if (empty($tree)) {
+            // Change the request to expand all children and limit the depth to
+            // the immediate children of the root.
+            $parameters->expandedParents = array();
+            $parameters->setMinDepth(1);
+            $parameters->setMaxDepth(1);
+            // Re-load the tree.
+            $tree = $this->menuTree->load(NULL, $parameters);
+          }
         }
       }
+      // end custom
     }
 
     // Load the tree if we haven't already.
@@ -161,7 +253,13 @@ class MenuBlock extends SystemMenuBlock {
       array('callable' => 'menu.default_tree_manipulators:checkAccess'),
       array('callable' => 'menu.default_tree_manipulators:generateIndexAndSort'),
     );
+
     $tree = $this->menuTree->transform($tree, $manipulators);
+    // Hide parent children if it is set in config.
+    if ($hide_children) {
+      $tree = $this->hideParentChildren($tree);
+    }
+
     $build = $this->menuTree->build($tree);
 
     if (!empty($build['#theme'])) {
@@ -176,13 +274,54 @@ class MenuBlock extends SystemMenuBlock {
   }
 
   /**
+   * Set the menu level relative to the active trail.
+   */
+  public function setActiveTrailLevel($level, $custom_level, $trail_ids) {
+    $dynamic_level = count($trail_ids) - $custom_level;
+    if ($dynamic_level >= 1) {
+      $level = $dynamic_level;
+    }
+
+    return $level;
+  }
+
+  /**
+   * Hide the children of the active parent.
+   */
+  public function hideParentChildren($tree) {
+    $not_active_items = [];
+    $unset = FALSE;
+    if (count($tree)) {
+      foreach ($tree as $id => $branch) {
+        if (!$branch->inActiveTrail) {
+          $not_active_items[$id] = $id;
+        }
+        if ($branch->inActiveTrail && $branch->hasChildren) {
+          $unset = TRUE;
+        }
+      }
+    }
+
+    if ($unset) {
+      foreach ($not_active_items as $not_active_item) {
+        unset($tree[$not_active_item]);
+      }
+    }
+
+    return $tree;
+  }
+
+  /**
    * {@inheritdoc}
    */
   public function defaultConfiguration() {
     return [
       'level' => 1,
+      'custom_level' => 1,
+      'hide_children' => 0,
       'depth' => 0,
       'expand' => 0,
+      'expand_only_active_trails' => 0,
       'parent' => $this->getDerivativeId() . ':',
       'suggestion' => strtr($this->getDerivativeId(), '-', '_'),
     ];