diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index 8192900..a7ab028 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -1,125 +1,129 @@
 <?php
 
 /**
  * This file is automatically generated. Use 'arc liberate' to rebuild it.
  *
  * @generated
  * @phutil-library-version 2
  */
 phutil_register_library_map(array(
   '__library_version__' => 2,
   'class' => array(
     'SemiStructuredBaseController' => 'applications/semistruct/controller/SemiStructuredBaseController.php',
     'SemiStructuredDAO' => 'applications/semistruct/storage/SemiStructuredDAO.php',
     'SemiStructuredDataApplication' => 'applications/semistruct/application/SemiStructuredDataApplication.php',
     'SemiStructuredInstanceConfiguredCustomField' => 'applications/semistruct/customfield/SemiStructuredConfiguredCustomField.php',
     'SemiStructuredInstanceConfiguredCustomFieldStorage' => 'applications/semistruct/storage/SemiStructuredInstanceConfiguredCustomFieldStorage.php',
     'SemiStructuredInstanceCustomField' => 'applications/semistruct/customfield/SemiStructuredInstanceCustomField.php',
     'SemiStructuredInstanceCustomFieldNumericIndex' => 'applications/semistruct/storage/SemiStructuredInstanceCustomFieldNumericIndex.php',
     'SemiStructuredInstanceCustomFieldStringIndex' => 'applications/semistruct/storage/SemiStructuredInstanceCustomFieldStringIndex.php',
     'SemiStructuredObjectInstance' => 'applications/semistruct/storage/SemiStructuredObjectInstance.php',
     'SemiStructuredObjectInstanceClassTransaction' => 'applications/semistruct/xaction/instance/SemiStructuredObjectInstanceClassTransaction.php',
     'SemiStructuredObjectInstanceController' => 'applications/semistruct/controller/instance/SemiStructuredObjectInstanceController.php',
     'SemiStructuredObjectInstanceDescriptionTransaction' => 'applications/semistruct/xaction/instance/SemiStructuredObjectInstanceDescriptionTransaction.php',
     'SemiStructuredObjectInstanceEditController' => 'applications/semistruct/controller/instance/SemiStructuredObjectInstanceEditController.php',
     'SemiStructuredObjectInstanceEditEngine' => 'applications/semistruct/editor/SemiStructuredObjectInstanceEditEngine.php',
     'SemiStructuredObjectInstanceListController' => 'applications/semistruct/controller/instance/SemiStructuredObjectInstanceListController.php',
     'SemiStructuredObjectInstanceNameTransaction' => 'applications/semistruct/xaction/instance/SemiStructuredObjectInstanceNameTransaction.php',
     'SemiStructuredObjectInstancePHIDType' => 'applications/semistruct/phid/SemiStructuredObjectInstancePHIDType.php',
     'SemiStructuredObjectInstanceQuery' => 'applications/semistruct/query/SemiStructuredObjectInstanceQuery.php',
     'SemiStructuredObjectInstanceRawDataTransaction' => 'applications/semistruct/xaction/instance/SemiStructuredObjectInstanceRawDataTransaction.php',
     'SemiStructuredObjectInstanceSearchEngine' => 'applications/semistruct/query/SemiStructuredObjectInstanceSearchEngine.php',
     'SemiStructuredObjectInstanceTransaction' => 'applications/semistruct/storage/SemiStructuredObjectInstanceTransaction.php',
     'SemiStructuredObjectInstanceTransactionComment' => 'applications/semistruct/storage/SemiStructuredObjectInstanceTransactionComment.php',
     'SemiStructuredObjectInstanceTransactionEditor' => 'applications/semistruct/editor/SemiStructuredObjectInstanceTransactionEditor.php',
     'SemiStructuredObjectInstanceTransactionQuery' => 'applications/semistruct/query/SemiStructuredObjectInstanceTransactionQuery.php',
     'SemiStructuredObjectInstanceTransactionType' => 'applications/semistruct/xaction/instance/SemiStructuredObjectInstanceTransactionType.php',
     'SemiStructuredObjectInstanceViewController' => 'applications/semistruct/controller/instance/SemiStructuredObjectInstanceViewController.php',
     'SemiStructuredObjectNewInstanceController' => 'applications/semistruct/controller/class/SemiStructuredObjectNewInstanceController.php',
     'SemiStructuredObjectType' => 'applications/semistruct/storage/SemiStructuredObjectType.php',
+    'SemiStructuredObjectTypeArchiveController' => 'applications/semistruct/controller/class/SemiStructuredObjectTypeArchiveController.php',
     'SemiStructuredObjectTypeController' => 'applications/semistruct/controller/class/SemiStructuredObjectTypeController.php',
     'SemiStructuredObjectTypeCustomFieldsTransaction' => 'applications/semistruct/xaction/class/SemiStructuredObjectTypeCustomFieldsTransaction.php',
     'SemiStructuredObjectTypeDescriptionTransaction' => 'applications/semistruct/xaction/class/SemiStructuredObjectTypeDescriptionTransaction.php',
     'SemiStructuredObjectTypeEditController' => 'applications/semistruct/controller/class/SemiStructuredObjectTypeEditController.php',
     'SemiStructuredObjectTypeEditEngine' => 'applications/semistruct/editor/SemiStructuredObjectTypeEditEngine.php',
     'SemiStructuredObjectTypeFerretEngine' => 'applications/semistruct/engine/SemiStructuredObjectTypeFerretEngine.php',
     'SemiStructuredObjectTypeListController' => 'applications/semistruct/controller/class/SemiStructuredObjectTypeListController.php',
     'SemiStructuredObjectTypeNameTransaction' => 'applications/semistruct/xaction/class/SemiStructuredObjectTypeNameTransaction.php',
     'SemiStructuredObjectTypePHIDType' => 'applications/semistruct/phid/SemiStructuredObjectTypePHIDType.php',
     'SemiStructuredObjectTypeQuery' => 'applications/semistruct/query/SemiStructuredObjectTypeQuery.php',
     'SemiStructuredObjectTypeSearchEngine' => 'applications/semistruct/query/SemiStructuredObjectTypeSearchEngine.php',
+    'SemiStructuredObjectTypeStatusTransaction' => 'applications/semistruct/xaction/class/SemiStructuredObjectTypeStatusTransaction.php',
     'SemiStructuredObjectTypeTransaction' => 'applications/semistruct/storage/SemiStructuredObjectTypeTransaction.php',
     'SemiStructuredObjectTypeTransactionComment' => 'applications/semistruct/storage/SemiStructuredObjectTypeTransactionComment.php',
     'SemiStructuredObjectTypeTransactionEditor' => 'applications/semistruct/editor/SemiStructuredObjectTypeTransactionEditor.php',
     'SemiStructuredObjectTypeTransactionQuery' => 'applications/semistruct/query/SemiStructuredObjectTypeTransactionQuery.php',
     'SemiStructuredObjectTypeTransactionType' => 'applications/semistruct/xaction/class/SemiStructuredObjectTypeTransactionType.php',
     'SemiStructuredObjectTypeViewController' => 'applications/semistruct/controller/class/SemiStructuredObjectTypeViewController.php',
     'SemiStructuredPatchList' => 'applications/semistruct/storage/SemiStructuredPatchList.php',
   ),
   'function' => array(),
   'xmap' => array(
     'SemiStructuredBaseController' => 'PhabricatorController',
     'SemiStructuredDAO' => 'PhabricatorLiskDAO',
     'SemiStructuredDataApplication' => 'PhabricatorApplication',
     'SemiStructuredInstanceConfiguredCustomField' => array(
       'SemiStructuredInstanceCustomField',
       'PhabricatorStandardCustomFieldInterface',
     ),
     'SemiStructuredInstanceConfiguredCustomFieldStorage' => 'PhabricatorCustomFieldStorage',
     'SemiStructuredInstanceCustomField' => 'PhabricatorCustomField',
     'SemiStructuredInstanceCustomFieldNumericIndex' => 'PhabricatorCustomFieldNumericIndexStorage',
     'SemiStructuredInstanceCustomFieldStringIndex' => 'PhabricatorCustomFieldStringIndexStorage',
     'SemiStructuredObjectInstance' => array(
       'SemiStructuredDAO',
       'PhabricatorPolicyInterface',
       'PhabricatorApplicationTransactionInterface',
       'PhabricatorFlaggableInterface',
       'PhabricatorCustomFieldInterface',
       'PhabricatorDestructibleInterface',
     ),
     'SemiStructuredObjectInstanceClassTransaction' => 'SemiStructuredObjectInstanceTransactionType',
     'SemiStructuredObjectInstanceController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectInstanceDescriptionTransaction' => 'SemiStructuredObjectInstanceTransactionType',
     'SemiStructuredObjectInstanceEditController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectInstanceEditEngine' => 'PhabricatorEditEngine',
     'SemiStructuredObjectInstanceListController' => 'SemiStructuredObjectTypeController',
     'SemiStructuredObjectInstanceNameTransaction' => 'SemiStructuredObjectInstanceTransactionType',
     'SemiStructuredObjectInstancePHIDType' => 'PhabricatorPHIDType',
     'SemiStructuredObjectInstanceQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'SemiStructuredObjectInstanceRawDataTransaction' => 'SemiStructuredObjectInstanceTransactionType',
     'SemiStructuredObjectInstanceSearchEngine' => 'PhabricatorApplicationSearchEngine',
     'SemiStructuredObjectInstanceTransaction' => 'PhabricatorModularTransaction',
     'SemiStructuredObjectInstanceTransactionComment' => 'PhabricatorApplicationTransactionComment',
     'SemiStructuredObjectInstanceTransactionEditor' => 'PhabricatorApplicationTransactionEditor',
     'SemiStructuredObjectInstanceTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
     'SemiStructuredObjectInstanceTransactionType' => 'PhabricatorModularTransactionType',
     'SemiStructuredObjectInstanceViewController' => 'SemiStructuredObjectInstanceController',
     'SemiStructuredObjectNewInstanceController' => 'SemiStructuredObjectTypeController',
     'SemiStructuredObjectType' => array(
       'SemiStructuredDAO',
       'PhabricatorPolicyInterface',
       'PhabricatorApplicationTransactionInterface',
       'PhabricatorFlaggableInterface',
       'PhabricatorDestructibleInterface',
       'PhabricatorFerretInterface',
     ),
+    'SemiStructuredObjectTypeArchiveController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectTypeController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectTypeCustomFieldsTransaction' => 'SemiStructuredObjectTypeTransactionType',
     'SemiStructuredObjectTypeDescriptionTransaction' => 'SemiStructuredObjectTypeTransactionType',
     'SemiStructuredObjectTypeEditController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectTypeEditEngine' => 'PhabricatorEditEngine',
     'SemiStructuredObjectTypeFerretEngine' => 'PhabricatorFerretEngine',
     'SemiStructuredObjectTypeListController' => 'SemiStructuredBaseController',
     'SemiStructuredObjectTypeNameTransaction' => 'SemiStructuredObjectTypeTransactionType',
     'SemiStructuredObjectTypePHIDType' => 'PhabricatorPHIDType',
     'SemiStructuredObjectTypeQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'SemiStructuredObjectTypeSearchEngine' => 'PhabricatorApplicationSearchEngine',
+    'SemiStructuredObjectTypeStatusTransaction' => 'SemiStructuredObjectTypeTransactionType',
     'SemiStructuredObjectTypeTransaction' => 'PhabricatorModularTransaction',
     'SemiStructuredObjectTypeTransactionComment' => 'PhabricatorApplicationTransactionComment',
     'SemiStructuredObjectTypeTransactionEditor' => 'PhabricatorApplicationTransactionEditor',
     'SemiStructuredObjectTypeTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
     'SemiStructuredObjectTypeTransactionType' => 'PhabricatorModularTransactionType',
     'SemiStructuredObjectTypeViewController' => 'SemiStructuredObjectTypeController',
     'SemiStructuredPatchList' => 'PhabricatorSQLPatchList',
   ),
 ));
diff --git a/src/application/SemiStructuredDataApplication.php b/src/application/SemiStructuredDataApplication.php
index 6e349d9..59d0e38 100644
--- a/src/application/SemiStructuredDataApplication.php
+++ b/src/application/SemiStructuredDataApplication.php
@@ -1,43 +1,44 @@
 <?php
 
 final class SemiStructuredDataApplication extends PhabricatorApplication {
   public function getName() {
     return pht('Semi-Structured');
   }
 
   public function getShortDescription() {
     return pht('Work with evolving data sets.');
   }
 
   public function getIcon() {
     return 'fa-wpforms';
   }
 
   public function getBaseURI() {
     return '/semistruct/';
   }
 
   public function getRoutes() {
     return array(
         '/semistruct/' => array(
           '(?:query/(?P<queryKey>[^/]+)/)?' =>
             'SemiStructuredObjectTypeListController',
           $this->getEditRoutePattern('editclass/') =>
             'SemiStructuredObjectTypeEditController',
           'type/(?:(?P<id>\d+)/)?' => array(
             '' => 'SemiStructuredObjectTypeViewController',
             'new/' => 'SemiStructuredObjectNewInstanceController',
             'items/' => 'SemiStructuredObjectInstanceListController',
+            'archive/' => 'SemiStructuredObjectTypeArchiveController',
           ),
 
 
           $this->getEditRoutePattern('editinstance/') =>
             'SemiStructuredObjectInstanceEditController',
           'instance/(?:(?P<id>\d+)/)?' =>
             'SemiStructuredObjectInstanceViewController',
 
         ),
     );
   }
 
 }
diff --git a/src/controller/class/SemiStructuredObjectTypeArchiveController.php b/src/controller/class/SemiStructuredObjectTypeArchiveController.php
new file mode 100644
index 0000000..77d4ef7
--- /dev/null
+++ b/src/controller/class/SemiStructuredObjectTypeArchiveController.php
@@ -0,0 +1,62 @@
+<?php
+
+final class SemiStructuredObjectTypeArchiveController
+  extends SemiStructuredBaseController {
+
+  public function handleRequest(AphrontRequest $request) {
+    $viewer = $request->getViewer();
+    $id = $request->getURIData('id');
+
+    $object_type = id(new SemiStructuredObjectTypeQuery())
+      ->setViewer($viewer)
+      ->withIDs(array($id))
+      ->executeOne();
+    if (!$object_type) {
+      return new Aphront404Response();
+    }
+
+
+    $view_uri = $object_type->getURI();
+
+    if ($request->isFormPost()) {
+      if ($object_type->isArchived()) {
+        $new_status = SemiStructuredObjectType::STATUS_ACTIVE;
+      } else {
+        $new_status = SemiStructuredObjectType::STATUS_ARCHIVED;
+      }
+
+      $xactions = array();
+
+      $xactions[] = id(new SemiStructuredObjectTypeTransaction())
+        ->setTransactionType(
+          SemiStructuredObjectTypeStatusTransaction::TRANSACTIONTYPE)
+        ->setNewValue($new_status);
+
+      id(new SemiStructuredObjectTypeTransactionEditor())
+        ->setActor($viewer)
+        ->setContentSourceFromRequest($request)
+        ->setContinueOnNoEffect(true)
+        ->setContinueOnMissingFields(true)
+        ->applyTransactions($object_type, $xactions);
+
+      return id(new AphrontRedirectResponse())->setURI($view_uri);
+    }
+
+    if ($object_type->isArchived()) {
+      $title = pht('Activate Object Type');
+      $body = pht('This Object Type will be usable again.');
+      $button = pht('Activate Object Type');
+    } else {
+      $title = pht('Archive Object Type');
+      $body = pht('This Object Type will be grayed out and forgotten.');
+      $button = pht('Archive Object Type');
+    }
+
+    return $this->newDialog()
+      ->setTitle($title)
+      ->appendChild($body)
+      ->addCancelButton($view_uri)
+      ->addSubmitButton($button);
+  }
+
+}
diff --git a/src/controller/class/SemiStructuredObjectTypeViewController.php b/src/controller/class/SemiStructuredObjectTypeViewController.php
index 3a83db1..105322b 100644
--- a/src/controller/class/SemiStructuredObjectTypeViewController.php
+++ b/src/controller/class/SemiStructuredObjectTypeViewController.php
@@ -1,174 +1,174 @@
 <?php
 
 final class SemiStructuredObjectTypeViewController
   extends SemiStructuredObjectTypeController {
 
   public function handleRequest(AphrontRequest $request) {
     $viewer = $request->getViewer();
     $id = $request->getURIData('id');
 
     $object_type = id(new SemiStructuredObjectTypeQuery())
       ->setViewer($viewer)
       ->withIDs(array($id))
       ->executeOne();
     if (!$object_type) {
       return new Aphront404Response();
     }
 
     $this->setObjectType($object_type);
 
     $crumbs = $this->buildApplicationCrumbs();
     $title = $object_type->getName();
 
     $header = $this->buildHeaderView();
     $curtain = $this->buildCurtain();
     $details = $this->buildDetailsView();
 
     $timeline = $this->buildTransactionTimeline(
       $object_type,
       new SemiStructuredObjectTypeTransactionQuery());
 
 
     $comment_view = id(new SemiStructuredObjectTypeEditEngine())
       ->setViewer($viewer)
       ->buildEditEngineCommentView($object_type);
 
     $instances_view = $this->buildInstancesView();
 
     $view = id(new PHUITwoColumnView())
       ->setHeader($header)
       ->setCurtain($curtain)
       ->setMainColumn(array(
           $instances_view,
           $timeline,
           $comment_view,
           ))
       ->addPropertySection(pht('Description'), $details);
 
 
     $navigation = $this->buildSideNavView('view');
 
     return $this->newPage()
       ->setTitle($title)
       ->setCrumbs($crumbs)
       ->setPageObjectPHIDs(array($object_type->getPHID()))
       ->setNavigation($navigation)
       ->appendChild($view);
   }
 
 private function buildDetailsView() {
     $viewer = $this->getViewer();
     $object_type = $this->getObjectType();
 
     $view = id(new PHUIPropertyListView())
       ->setUser($viewer);
 
     $description = $object_type->getDescription();
     if (strlen($description)) {
       $view->addTextContent(
         new PHUIRemarkupView($viewer, $description));
     }
 
     $custom_fields_def = $object_type->getCustomFieldsConfig();
     $custom_fields_def = id(new PhutilJSON())
       ->encodeFormatted($custom_fields_def);
 
     $view->addProperty(
       pht('Custom Fields'),
       phutil_tag('pre', array(), $custom_fields_def));
 
     return $view;
   }
 
   private function buildCurtain() {
     $viewer = $this->getViewer();
     $object_type = $this->getObjectType();
 
     $can_edit = PhabricatorPolicyFilter::hasCapability(
       $viewer,
       $object_type,
       PhabricatorPolicyCapability::CAN_EDIT);
 
     $can_create_instance = true;
 
     $id = $object_type->getID();
     $edit_uri = $this->getApplicationURI("/editclass/{$id}/");
     $create_uri = $this->getApplicationURI("/type/{$id}/new/");
-    $archive_uri = $this->getApplicationURI("/archive/{$id}/");
+    $archive_uri = $this->getApplicationURI("/type/{$id}/archive/");
 
     $curtain = $this->newCurtainView($object_type);
 
     $curtain->addAction(
       id(new PhabricatorActionView())
         ->setName(pht('Edit Object Type'))
         ->setIcon('fa-pencil')
         ->setDisabled(!$can_edit)
         ->setHref($edit_uri));
 
     $curtain->addAction(
       id(new PhabricatorActionView())
         ->setName(pht('Create New Instance'))
         ->setIcon('fa-plus')
         ->setDisabled(!$can_create_instance)
         ->setHref($create_uri));
 
     if ($object_type->isArchived()) {
       $curtain->addAction(
         id(new PhabricatorActionView())
           ->setName(pht('Activate Object Type'))
           ->setIcon('fa-check')
           ->setDisabled(!$can_edit)
           ->setWorkflow($can_edit)
           ->setHref($archive_uri));
-    } else {/*
+    } else {
       $curtain->addAction(
         id(new PhabricatorActionView())
           ->setName(pht('Archive Object Type'))
           ->setIcon('fa-ban')
           ->setDisabled(!$can_edit)
           ->setWorkflow($can_edit)
-          ->setHref($archive_uri)); */
+          ->setHref($archive_uri));
     }
 
     return $curtain;
   }
 
   private function buildInstancesView() {
     $viewer = $this->getViewer();
     $object_type = $this->getObjectType();
 
     $instances = id(new SemiStructuredObjectInstanceQuery())
       ->setViewer($viewer)
       ->setLimit(10)
       ->withClassPHIDs(array($object_type->getPHID()))
       ->execute();
 
 
     $content = id(new SemiStructuredObjectInstanceSearchEngine())
       ->setViewer($viewer)
       ->renderResultsDirectly($instances);
 
     // $content is PhabricatorApplicationSearchResultView
 
     $box = new PHUIObjectBoxView();
 
     $interface = 'PhabricatorApplicationSearchResultView';
     if ($content->getObjectList()) {
       $box->setObjectList($content->getObjectList());
     }
     if ($content->getTable()) {
       $box->setTable($content->getTable());
     }
     if ($content->getContent()) {
       $box->appendChild($content->getContent());
     }
 
     $box
       ->setHeader(pht('Instances of this type'));
 
     return $box;
 
 
   }
 
 }
diff --git a/src/query/SemiStructuredObjectTypeSearchEngine.php b/src/query/SemiStructuredObjectTypeSearchEngine.php
index 55a2b17..30b4e5e 100644
--- a/src/query/SemiStructuredObjectTypeSearchEngine.php
+++ b/src/query/SemiStructuredObjectTypeSearchEngine.php
@@ -1,149 +1,149 @@
 <?php
 
 final class SemiStructuredObjectTypeSearchEngine
   extends PhabricatorApplicationSearchEngine {
 
   public function getResultTypeDescription() {
     return pht('Object Types');
   }
 
   public function getApplicationClassName() {
     return 'SemiStructuredDataApplication';
   }
 
   public function newQuery() {
     return id(new SemiStructuredObjectTypeQuery());
   }
 
   protected function buildCustomSearchFields() {
     return array(
       id(new PhabricatorSearchCheckboxesField())
         ->setKey('statuses')
         ->setLabel(pht('Status'))
         ->setOptions(SemiStructuredObjectType::getStatusNameMap()),
       id(new PhabricatorSearchCheckboxesField())
         ->setKey('editable')
         ->setLabel(pht('Editable'))
         ->setOptions(array('editable' => null)),
     );
   }
 
   protected function getURI($path) {
     return '/semistruct/'.$path;
   }
 
   protected function getBuiltinQueryNames() {
     $names = array();
 
-    $names['all'] = pht('All Types');
     $names['open'] = pht('Active Types');
+    $names['all'] = pht('All Types');
 
     return $names;
   }
 
   public function buildSavedQueryFromBuiltin($query_key) {
     $query = $this->newSavedQuery();
     $query->setQueryKey($query_key);
     $viewer = $this->requireViewer();
 
     switch ($query_key) {
       case 'all':
         return $query;
       case 'open':
         return $query->setParameter(
           'statuses',
           array(
             SemiStructuredObjectType::STATUS_ACTIVE,
           ));
     }
 
     return parent::buildSavedQueryFromBuiltin($query_key);
   }
 
 
   protected function buildQueryFromParameters(array $map) {
     $query = $this->newQuery();
 
     if ($map['statuses']) {
       $query->withStatuses($map['statuses']);
     }
 
     if ($map['editable'] !== null) {
       $query->withCanEdit($map['editable']);
     }
 
     return $query;
   }
 
   protected function getRequiredHandlePHIDsForResultList(
     array $objects,
     PhabricatorSavedQuery $query) {
 
     return array();
   }
 
   protected function renderResultList(
     array $items,
     PhabricatorSavedQuery $query,
     array $handles) {
 
     $viewer = $this->requireViewer();
 
     if ($items) {
       $edge_query = id(new PhabricatorEdgeQuery())
         ->withSourcePHIDs(mpull($items, 'getPHID'))
         ->withEdgeTypes(
           array(
             PhabricatorProjectObjectHasProjectEdgeType::EDGECONST,
           ));
 
       $edge_query->execute();
     }
 
     $list = id(new PHUIObjectItemListView())
       ->setViewer($viewer);
 
     foreach ($items as $class) {
       $item = id(new PHUIObjectItemView())
         ->setViewer($viewer)
         ->setObjectName($class->getObjectName())
         ->setHeader($class->getName())
         ->setHref($class->getURI())
         ->setObject($class);
 
       if ($class->isArchived()) {
         $item->setDisabled(true);
         $bg_color = 'bg-grey';
       } else {
         $bg_color = 'bg-dark';
       }
 
       $icon = id(new PHUIIconView())
         ->setIcon($class->getIcon());
       $item->setImageIcon($icon);
       $item->setEpoch($class->getDateModified());
 
 
       $phid = $class->getPHID();
       $project_phids = $edge_query->getDestinationPHIDs(array($phid));
       $project_handles = $viewer->loadHandles($project_phids);
 
       $item->addAttribute(
         id(new PHUIHandleTagListView())
           ->setLimit(4)
           ->setNoDataString(pht('No Tags'))
           ->setSlim(true)
           ->setHandles($project_handles));
 
       $list->addItem($item);
     }
 
     $result = new PhabricatorApplicationSearchResultView();
     $result->setObjectList($list);
     $result->setNoDataString(pht('No object types found.'));
 
     return $result;
   }
 
 
 }
diff --git a/src/xaction/class/SemiStructuredObjectTypeStatusTransaction.php b/src/xaction/class/SemiStructuredObjectTypeStatusTransaction.php
new file mode 100644
index 0000000..c848625
--- /dev/null
+++ b/src/xaction/class/SemiStructuredObjectTypeStatusTransaction.php
@@ -0,0 +1,50 @@
+<?php
+
+final class SemiStructuredObjectTypeStatusTransaction
+  extends SemiStructuredObjectTypeTransactionType {
+
+  const TRANSACTIONTYPE = 'semist:class.status';
+
+  public function generateOldValue($object) {
+    return $object->getStatus();
+  }
+
+  public function applyInternalEffects($object, $value) {
+    $object->setStatus($value);
+  }
+
+  public function getTitle() {
+    if ($this->getNewValue() == SemiStructuredObjectType::STATUS_ARCHIVED) {
+      return pht(
+        '%s disabled this Type.',
+        $this->renderAuthor());
+    } else {
+      return pht(
+        '%s enabled this Type.',
+        $this->renderAuthor());
+    }
+  }
+
+  public function getTitleForFeed() {
+    if ($this->getNewValue() == SemiStructuredObjectType::STATUS_ARCHIVED) {
+      return pht(
+        '%s disabled the Type %s.',
+        $this->renderAuthor(),
+        $this->renderObject());
+    } else {
+      return pht(
+        '%s enabled the Type %s.',
+        $this->renderAuthor(),
+        $this->renderObject());
+    }
+  }
+
+  public function getIcon() {
+    if ($this->getNewValue() == SemiStructuredObjectType::STATUS_ARCHIVED) {
+      return 'fa-ban';
+    } else {
+      return 'fa-check';
+    }
+  }
+
+}