diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -533,6 +533,8 @@
     'DifferentialRevisionQuery' => 'applications/differential/query/DifferentialRevisionQuery.php',
     'DifferentialRevisionRepositoryHeraldField' => 'applications/differential/herald/DifferentialRevisionRepositoryHeraldField.php',
     'DifferentialRevisionRepositoryProjectsHeraldField' => 'applications/differential/herald/DifferentialRevisionRepositoryProjectsHeraldField.php',
+    'DifferentialRevisionRequiredActionResultBucket' => 'applications/differential/query/DifferentialRevisionRequiredActionResultBucket.php',
+    'DifferentialRevisionResultBucket' => 'applications/differential/query/DifferentialRevisionResultBucket.php',
     'DifferentialRevisionReviewersHeraldField' => 'applications/differential/herald/DifferentialRevisionReviewersHeraldField.php',
     'DifferentialRevisionSearchEngine' => 'applications/differential/query/DifferentialRevisionSearchEngine.php',
     'DifferentialRevisionStatus' => 'applications/differential/constants/DifferentialRevisionStatus.php',
@@ -3317,6 +3319,7 @@
     'PhabricatorSearchOrderField' => 'applications/search/field/PhabricatorSearchOrderField.php',
     'PhabricatorSearchPreferencesSettingsPanel' => 'applications/settings/panel/PhabricatorSearchPreferencesSettingsPanel.php',
     'PhabricatorSearchRelationship' => 'applications/search/constants/PhabricatorSearchRelationship.php',
+    'PhabricatorSearchResultBucket' => 'applications/search/buckets/PhabricatorSearchResultBucket.php',
     'PhabricatorSearchResultView' => 'applications/search/view/PhabricatorSearchResultView.php',
     'PhabricatorSearchSchemaSpec' => 'applications/search/storage/PhabricatorSearchSchemaSpec.php',
     'PhabricatorSearchSelectController' => 'applications/search/controller/PhabricatorSearchSelectController.php',
@@ -4758,6 +4761,8 @@
     'DifferentialRevisionQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'DifferentialRevisionRepositoryHeraldField' => 'DifferentialRevisionHeraldField',
     'DifferentialRevisionRepositoryProjectsHeraldField' => 'DifferentialRevisionHeraldField',
+    'DifferentialRevisionRequiredActionResultBucket' => 'DifferentialRevisionResultBucket',
+    'DifferentialRevisionResultBucket' => 'PhabricatorSearchResultBucket',
     'DifferentialRevisionReviewersHeraldField' => 'DifferentialRevisionHeraldField',
     'DifferentialRevisionSearchEngine' => 'PhabricatorApplicationSearchEngine',
     'DifferentialRevisionStatus' => 'Phobject',
@@ -8009,6 +8014,7 @@
     'PhabricatorSearchOrderField' => 'PhabricatorSearchField',
     'PhabricatorSearchPreferencesSettingsPanel' => 'PhabricatorSettingsPanel',
     'PhabricatorSearchRelationship' => 'Phobject',
+    'PhabricatorSearchResultBucket' => 'Phobject',
     'PhabricatorSearchResultView' => 'AphrontView',
     'PhabricatorSearchSchemaSpec' => 'PhabricatorConfigSchemaSpec',
     'PhabricatorSearchSelectController' => 'PhabricatorSearchBaseController',
diff --git a/src/applications/differential/query/DifferentialRevisionRequiredActionResultBucket.php b/src/applications/differential/query/DifferentialRevisionRequiredActionResultBucket.php
new file mode 100644
--- /dev/null
+++ b/src/applications/differential/query/DifferentialRevisionRequiredActionResultBucket.php
@@ -0,0 +1,12 @@
+<?php
+
+final class DifferentialRevisionRequiredActionResultBucket
+  extends DifferentialRevisionResultBucket {
+
+  const BUCKETKEY = 'action';
+
+  public function getResultBucketName() {
+    return pht('Bucket by Required Action');
+  }
+
+}
diff --git a/src/applications/differential/query/DifferentialRevisionResultBucket.php b/src/applications/differential/query/DifferentialRevisionResultBucket.php
new file mode 100644
--- /dev/null
+++ b/src/applications/differential/query/DifferentialRevisionResultBucket.php
@@ -0,0 +1,13 @@
+<?php
+
+abstract class DifferentialRevisionResultBucket
+  extends PhabricatorSearchResultBucket {
+
+  public static function getAllResultBuckets() {
+    return id(new PhutilClassMapQuery())
+      ->setAncestorClass(__CLASS__)
+      ->setUniqueMethod('getResultBucketKey')
+      ->execute();
+  }
+
+}
diff --git a/src/applications/differential/query/DifferentialRevisionSearchEngine.php b/src/applications/differential/query/DifferentialRevisionSearchEngine.php
--- a/src/applications/differential/query/DifferentialRevisionSearchEngine.php
+++ b/src/applications/differential/query/DifferentialRevisionSearchEngine.php
@@ -11,6 +11,10 @@
     return 'PhabricatorDifferentialApplication';
   }
 
+  protected function newResultBuckets() {
+    return DifferentialRevisionResultBucket::getAllResultBuckets();
+  }
+
   public function newQuery() {
     return id(new DifferentialRevisionQuery())
       ->needFlags(true)
@@ -18,14 +22,6 @@
       ->needRelationships(true);
   }
 
-  public function getPageSize(PhabricatorSavedQuery $saved) {
-    if ($saved->getQueryKey() == 'active') {
-      return 0xFFFF;
-    }
-    return parent::getPageSize($saved);
-  }
-
-
   protected function buildQueryFromParameters(array $map) {
     $query = $this->newQuery();
 
@@ -114,9 +110,12 @@
 
     switch ($query_key) {
       case 'active':
+        $bucket_key = DifferentialRevisionRequiredActionResultBucket::BUCKETKEY;
+
         return $query
           ->setParameter('responsiblePHIDs', array($viewer->getPHID()))
-          ->setParameter('status', DifferentialRevisionQuery::STATUS_OPEN);
+          ->setParameter('status', DifferentialRevisionQuery::STATUS_OPEN)
+          ->setParameter('bucket', $bucket_key);
       case 'authored':
         return $query
           ->setParameter('authorPHIDs', array($viewer->getPHID()));
@@ -139,13 +138,6 @@
     );
   }
 
-  private function getOrderOptions() {
-    return array(
-      DifferentialRevisionQuery::ORDER_CREATED    => pht('Created'),
-      DifferentialRevisionQuery::ORDER_MODIFIED   => pht('Updated'),
-    );
-  }
-
   protected function renderResultList(
     array $revisions,
     PhabricatorSavedQuery $query,
@@ -157,8 +149,10 @@
       ->setUser($viewer)
       ->setNoBox($this->isPanelContext());
 
+    $bucket = $this->getResultBucket($query);
+
     $views = array();
-    if ($query->getQueryKey() == 'active') {
+    if ($bucket) {
         $split = DifferentialRevisionQuery::splitResponsible(
           $revisions,
           $query->getParameter('responsiblePHIDs'));
diff --git a/src/applications/search/buckets/PhabricatorSearchResultBucket.php b/src/applications/search/buckets/PhabricatorSearchResultBucket.php
new file mode 100644
--- /dev/null
+++ b/src/applications/search/buckets/PhabricatorSearchResultBucket.php
@@ -0,0 +1,31 @@
+<?php
+
+abstract class PhabricatorSearchResultBucket
+  extends Phobject {
+
+  private $pageSize;
+
+  final public function setPageSize($page_size) {
+    $this->pageSize = $page_size;
+    return $this;
+  }
+
+  final public function getPageSize() {
+    if ($this->pageSize === null) {
+      return $this->getDefaultPageSize();
+    }
+
+    return $this->pageSize;
+  }
+
+  protected function getDefaultPageSize() {
+    return 1000;
+  }
+
+  abstract public function getResultBucketName();
+
+  final public function getResultBucketKey() {
+    return $this->getPhobjectClassConstant('BUCKETKEY');
+  }
+
+}
diff --git a/src/applications/search/engine/PhabricatorApplicationSearchEngine.php b/src/applications/search/engine/PhabricatorApplicationSearchEngine.php
--- a/src/applications/search/engine/PhabricatorApplicationSearchEngine.php
+++ b/src/applications/search/engine/PhabricatorApplicationSearchEngine.php
@@ -28,6 +28,8 @@
   const CONTEXT_LIST  = 'list';
   const CONTEXT_PANEL = 'panel';
 
+  const BUCKET_NONE = 'none';
+
   public function setController(PhabricatorController $controller) {
     $this->controller = $controller;
     return $this;
@@ -266,6 +268,18 @@
         ->setOptions($orders);
     }
 
+    $buckets = $this->newResultBuckets();
+    if ($query && $buckets) {
+      $bucket_options = array(
+        self::BUCKET_NONE => pht('No Bucketing'),
+      ) + mpull($buckets, 'getResultBucketName');
+
+      $fields[] = id(new PhabricatorSearchSelectField())
+        ->setLabel(pht('Bucket'))
+        ->setKey('bucket')
+        ->setOptions($bucket_options);
+    }
+
     $field_map = array();
     foreach ($fields as $field) {
       $key = $field->getKey();
@@ -944,13 +958,37 @@
 /* -(  Paging and Executing Queries  )--------------------------------------- */
 
 
+  protected function newResultBuckets() {
+    return array();
+  }
+
+  protected function getResultBucket(PhabricatorSavedQuery $saved) {
+    $key = $saved->getParameter('bucket');
+    if ($key == self::BUCKET_NONE) {
+      return null;
+    }
+
+    $buckets = $this->newResultBuckets();
+    return idx($buckets, $key);
+  }
+
+
   public function getPageSize(PhabricatorSavedQuery $saved) {
+    $bucket = $this->getResultBucket($saved);
+
     $limit = (int)$saved->getParameter('limit');
 
     if ($limit > 0) {
+      if ($bucket) {
+        $bucket->setPageSize($limit);
+      }
       return $limit;
     }
 
+    if ($bucket) {
+      return $bucket->getPageSize();
+    }
+
     return 100;
   }