diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -417,7 +417,7 @@
     'rsrc/js/application/repository/repository-crossreference.js' => 'e5339c43',
     'rsrc/js/application/search/behavior-reorder-queries.js' => 'e9581f08',
     'rsrc/js/application/slowvote/behavior-slowvote-embed.js' => '887ad43f',
-    'rsrc/js/application/transactions/behavior-comment-actions.js' => '2ada1547',
+    'rsrc/js/application/transactions/behavior-comment-actions.js' => 'f293e8a0',
     'rsrc/js/application/transactions/behavior-reorder-fields.js' => 'b59e1e96',
     'rsrc/js/application/transactions/behavior-show-older-transactions.js' => 'dbbf48b6',
     'rsrc/js/application/transactions/behavior-transaction-comment-form.js' => 'b23b49e6',
@@ -561,7 +561,7 @@
     'javelin-behavior-audit-preview' => 'd835b03a',
     'javelin-behavior-bulk-job-reload' => 'edf8a145',
     'javelin-behavior-choose-control' => '6153c708',
-    'javelin-behavior-comment-actions' => '2ada1547',
+    'javelin-behavior-comment-actions' => 'f293e8a0',
     'javelin-behavior-config-reorder-fields' => 'b6993408',
     'javelin-behavior-conpherence-drag-and-drop-photo' => 'cf86d16a',
     'javelin-behavior-conpherence-menu' => '1d45c74d',
@@ -1033,14 +1033,6 @@
       'javelin-install',
       'javelin-util',
     ),
-    '2ada1547' => array(
-      'javelin-behavior',
-      'javelin-stratcom',
-      'javelin-workflow',
-      'javelin-dom',
-      'phuix-form-control-view',
-      'phuix-icon-view',
-    ),
     '2b8de964' => array(
       'javelin-install',
       'javelin-util',
@@ -1970,6 +1962,14 @@
       'javelin-workflow',
       'javelin-json',
     ),
+    'f293e8a0' => array(
+      'javelin-behavior',
+      'javelin-stratcom',
+      'javelin-workflow',
+      'javelin-dom',
+      'phuix-form-control-view',
+      'phuix-icon-view',
+    ),
     'f36e01af' => array(
       'javelin-behavior',
       'javelin-behavior-device',
diff --git a/src/applications/transactions/editfield/PhabricatorPHIDListEditField.php b/src/applications/transactions/editfield/PhabricatorPHIDListEditField.php
--- a/src/applications/transactions/editfield/PhabricatorPHIDListEditField.php
+++ b/src/applications/transactions/editfield/PhabricatorPHIDListEditField.php
@@ -44,6 +44,14 @@
     return new AphrontPHIDListHTTPParameterType();
   }
 
+  public function readValueFromComment($value) {
+    // TODO: This is really hacky -- make sure we pass a plain PHID list to
+    // the edit type. This method probably needs to move down to EditType, and
+    // maybe more additional logic does too.
+    $this->setUseEdgeTransactions(false);
+    return parent::readValueFromComment($value);
+  }
+
   public function getValueForTransaction() {
     $new = parent::getValueForTransaction();
 
diff --git a/src/applications/transactions/view/PhabricatorApplicationTransactionCommentView.php b/src/applications/transactions/view/PhabricatorApplicationTransactionCommentView.php
--- a/src/applications/transactions/view/PhabricatorApplicationTransactionCommentView.php
+++ b/src/applications/transactions/view/PhabricatorApplicationTransactionCommentView.php
@@ -12,7 +12,6 @@
   private $previewTimelineID;
   private $previewToggleID;
   private $formID;
-  private $statusID;
   private $commentID;
   private $draft;
   private $requestURI;
@@ -148,23 +147,17 @@
       $preview = null;
     }
 
-    Javelin::initBehavior(
-      'phabricator-transaction-comment-form',
-      array(
-        'formID'        => $this->getFormID(),
-        'timelineID'    => $this->getPreviewTimelineID(),
-        'panelID'       => $this->getPreviewPanelID(),
-        'statusID'      => $this->getStatusID(),
-        'commentID'     => $this->getCommentID(),
-
-        'loadingString' => pht('Loading Preview...'),
-        'savingString'  => pht('Saving Draft...'),
-        'draftString'   => pht('Saved Draft'),
-
-        'showPreview'   => $this->getShowPreview(),
-
-        'actionURI'     => $this->getAction(),
-      ));
+    if (!$this->getEditTypes()) {
+      Javelin::initBehavior(
+        'phabricator-transaction-comment-form',
+        array(
+          'formID'        => $this->getFormID(),
+          'timelineID'    => $this->getPreviewTimelineID(),
+          'panelID'       => $this->getPreviewPanelID(),
+          'showPreview'   => $this->getShowPreview(),
+          'actionURI'     => $this->getAction(),
+        ));
+    }
 
     $comment_box = id(new PHUIObjectBoxView())
       ->setFlush(true)
@@ -175,13 +168,6 @@
   }
 
   private function renderCommentPanel() {
-    $status = phutil_tag(
-      'div',
-      array(
-        'id' => $this->getStatusID(),
-      ),
-      '');
-
     $draft_comment = '';
     $draft_key = null;
     if ($this->getDraft()) {
@@ -269,7 +255,11 @@
           'inputID' => $input_id,
           'formID' => $this->getFormID(),
           'placeID' => $place_id,
+          'panelID' => $this->getPreviewPanelID(),
+          'timelineID' => $this->getPreviewTimelineID(),
           'actions' => $action_map,
+          'showPreview' => $this->getShowPreview(),
+          'actionURI' => $this->getAction(),
         ));
     }
 
@@ -283,10 +273,7 @@
           ->setValue($draft_comment))
       ->appendChild(
         id(new AphrontFormSubmitControl())
-          ->setValue($this->getSubmitButtonName()))
-      ->appendChild(
-        id(new AphrontFormMarkupControl())
-          ->setValue($status));
+          ->setValue($this->getSubmitButtonName()));
 
     return $form;
   }
diff --git a/webroot/rsrc/js/application/transactions/behavior-comment-actions.js b/webroot/rsrc/js/application/transactions/behavior-comment-actions.js
--- a/webroot/rsrc/js/application/transactions/behavior-comment-actions.js
+++ b/webroot/rsrc/js/application/transactions/behavior-comment-actions.js
@@ -34,19 +34,6 @@
     }
   });
 
-  JX.DOM.listen(form_node, 'submit', null, function() {
-    var data = [];
-
-    for (var k in rows) {
-      data.push({
-        type: k,
-        value: rows[k].getValue()
-      });
-    }
-
-    input_node.value = JX.JSON.stringify(data);
-  });
-
   function add_row(option) {
     var action = action_map[option.value];
     if (!action) {
@@ -77,4 +64,65 @@
     place_node.parentNode.insertBefore(node, place_node);
   }
 
+  function serialize_actions() {
+    var data = [];
+
+    for (var k in rows) {
+      data.push({
+        type: k,
+        value: rows[k].getValue()
+      });
+    }
+
+    return JX.JSON.stringify(data);
+  }
+
+  function get_data() {
+    var data = JX.DOM.convertFormToDictionary(form_node);
+
+    data.__preview__ = 1;
+    data[input_node.name] = serialize_actions();
+
+    return data;
+  }
+
+  function onresponse(response) {
+    var panel = JX.$(config.panelID);
+    if (!response.xactions.length) {
+      JX.DOM.hide(panel);
+    } else {
+      JX.DOM.setContent(
+        JX.$(config.timelineID),
+        [
+          JX.$H(response.spacer),
+          JX.$H(response.xactions.join(response.spacer))
+        ]);
+      JX.DOM.show(panel);
+    }
+  }
+
+  JX.DOM.listen(form_node, 'submit', null, function() {
+    input_node.value = serialize_actions();
+  });
+
+  if (config.showPreview) {
+    var request = new JX.PhabricatorShapedRequest(
+      config.actionURI,
+      onresponse,
+      get_data);
+
+    var trigger = JX.bind(request, request.trigger);
+
+    JX.DOM.listen(form_node, 'keydown', null, trigger);
+
+    var always_trigger = function() {
+      new JX.Request(config.actionURI, onresponse)
+        .setData(get_data())
+        .send();
+    };
+
+    JX.DOM.listen(form_node, 'shouldRefresh', null, always_trigger);
+    request.start();
+  }
+
 });