diff --git a/opencase.module b/opencase.module
index 60f0068..46e3e8a 100644
--- a/opencase.module
+++ b/opencase.module
@@ -127,8 +127,6 @@ function opencase_form_oc_case_type_add_form_alter(&$form, $form_state) {
 function opencase_form_oc_case_type_edit_form_alter(&$form, $form_state) {
   $widget = new EntityTypeRelationsWidget();
   $widget->setup($form);
-  $case_type_machine_name = $form['id']['#default_value'];
-  $base_field_override = \Drupal\Core\Field\Entity\BaseFieldOverride::load("oc_case.$case_type_machine_name.actors_involved");
-  if ($base_field_override) $widget->populate($form, $base_field_override);
+  $widget->populate($form);
 }
 
diff --git a/src/EntityTypeRelationsWidget.php b/src/EntityTypeRelationsWidget.php
index db3c445..e0a86de 100644
--- a/src/EntityTypeRelationsWidget.php
+++ b/src/EntityTypeRelationsWidget.php
@@ -3,7 +3,7 @@
 namespace Drupal\opencase;
 
 /**
- * Manages relations between case types and actor types, or activity types and case types 
+ * Manages GUI for configuring relations between case types and actor types, or activity types and case types 
  *
  */
 class EntityTypeRelationsWidget {
@@ -29,24 +29,28 @@ class EntityTypeRelationsWidget {
   }
 
   /**
-   * Takes a base_field_override configuration, 
-   * extracts list of actor types that are allowed for the case type
+   * Finds out which case type is being edited, then sees if it already
+   * has its allowed actor types stored in a base_field_override; if so, 
+   * extracts list of actor types
    * and put these into the default values for the checkboxes
    *
    * $form - the form to be modified (reference)
    * $base_field_override - the config entity
    */ 
-  public function populate(&$form, $base_field_override) {
-    $form['actor_types']['#default_value'] = array();
-    $actor_types =  $base_field_override->getSettings()['handler_settings']['target_bundles'];
-    // example of the $actor_types array: ['client' => 'client', 'volunteer' => 0]
-    foreach($actor_types as $machine_name => $value) {
-      if ($value) {
-        $form['actor_types']['#default_value'][] = $machine_name;        
+  public function populate(&$form) {
+    $case_type_machine_name = $form['id']['#default_value'];
+    $base_field_override = \Drupal\Core\Field\Entity\BaseFieldOverride::load("oc_case.$case_type_machine_name.actors_involved");
+    if ($base_field_override) { 
+      $form['actor_types']['#default_value'] = array();
+      $actor_types =  $base_field_override->getSettings()['handler_settings']['target_bundles'];
+      // example of the $actor_types array: ['client' => 'client', 'volunteer' => 0]
+      foreach($actor_types as $machine_name => $value) {
+        if ($value) {
+          $form['actor_types']['#default_value'][] = $machine_name;        
+        }
       }
     }
   }
-
   
   /**
    * Submit callback which takes the data from the actor types field and
diff --git a/src/Plugin/Block/ContextualMenu.php b/src/Plugin/Block/ContextualMenu.php
index 3b71a09..b3c64b6 100644
--- a/src/Plugin/Block/ContextualMenu.php
+++ b/src/Plugin/Block/ContextualMenu.php
@@ -5,7 +5,6 @@ namespace Drupal\opencase\Plugin\Block;
 use Drupal\Core\Block\BlockBase;
 use Drupal\Core\Link;
 use Drupal\Core\Url;
-use Drupal\opencase\Utils;
 
 /**
  * Provides a 'ContextualMenu' block.
@@ -85,7 +84,7 @@ class ContextualMenu extends BlockBase {
     $link = \Drupal::entityTypeManager()->getStorage('oc_actor')->load($actor_id)->toLink()->toString();
     $markup = $this->asNavLinks([$link]);
     $current_path =  \Drupal::service('path.current')->getPath();
-    $markup .= Utils::generateAddLinks('oc_case', "Add new case", ['actor_id' => $actor_id,  'destination' => $current_path]);
+    $markup .= $this->generateAddLinks('oc_case', "Add new case", ['actor_id' => $actor_id,  'destination' => $current_path]);
     return $markup; 
   }
 
@@ -125,7 +124,7 @@ class ContextualMenu extends BlockBase {
     $link = Link::fromTextAndUrl(t($case->getName() .": Case Details and Files"), $url)->toString();
     $markup = $this->asNavLinks([$link]);
     $current_path = \Drupal::service('path.current')->getPath();
-    return $markup . Utils::generateAddLinks('oc_activity', "Add activity", ['case_id' => $case_id, 'destination' => $current_path]);
+    return $markup . $this->generateAddLinks('oc_activity', "Add activity", ['case_id' => $case_id, 'destination' => $current_path]);
   }
 
   /**
@@ -180,4 +179,27 @@ class ContextualMenu extends BlockBase {
     return "<div class='opencase_nav_links'><h1>$title</h1>$markup</div>";
   }
 
+  /**
+   * Generates a set of links for adding different types of a base entity
+   *
+   * $baseEntityType the type of entity to generate the links for (it will generate one for each bundle of the base type)
+   * $title the title to be placed above the set of links)
+   * $query optionally append a query string to the links (key => value format
+   *
+   * returns html markup.
+   */
+  public static function generateAddLinks($baseEntityType, $title, $query = []) {
+    
+    $bundles = \Drupal::service('entity_type.bundle.info')->getBundleInfo($baseEntityType);
+    $title = t($title); 
+    $markup = "<h1>$title: </h1>";
+    foreach($bundles as $bundle_id => $bundle) {
+      $label = t($bundle['label']);
+      $url = \Drupal\Core\Url::fromRoute("entity.$baseEntityType.add_form", [$baseEntityType . '_type' => $bundle_id]);
+      $url->setOption('query', $query);
+      $link = \Drupal\Core\Link::fromTextAndUrl($label, $url)->toString();
+      $markup .= "<p>$link</p>";
+    }
+    return "<div class='opencase_add_links'>$markup</div>";
+  }
 }
diff --git a/src/Utils.php b/src/Utils.php
deleted file mode 100644
index 511a471..0000000
--- a/src/Utils.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-
-namespace Drupal\opencase;
-
-/**
- * Shared functions for the opencase module
- *
- */
-class Utils {
-
-
-  /**
-   * Generates a set of links for adding different types of a base entity
-   *
-   * $baseEntityType the type of entity to generate the links for (it will generate one for each bundle of the base type)
-   * $title the title to be placed above the set of links)
-   * $query optionally append a query string to the links (key => value format
-   *
-   * returns html markup.
-   */
-  public static function generateAddLinks($baseEntityType, $title, $query = []) {
-    
-    $bundles = \Drupal::service('entity_type.bundle.info')->getBundleInfo($baseEntityType);
-    $title = t($title); 
-    $markup = "<h1>$title: </h1>";
-    foreach($bundles as $bundle_id => $bundle) {
-      $label = t($bundle['label']);
-      $url = \Drupal\Core\Url::fromRoute("entity.$baseEntityType.add_form", [$baseEntityType . '_type' => $bundle_id]);
-      $url->setOption('query', $query);
-      $link = \Drupal\Core\Link::fromTextAndUrl($label, $url)->toString();
-      $markup .= "<p>$link</p>";
-    }
-    return "<div class='opencase_add_links'>$markup</div>";
-  }
-}