diff --git a/QuickGrade.html b/QuickGrade.html
index 9e468cc..de92e88 100644
--- a/QuickGrade.html
+++ b/QuickGrade.html
@@ -27429,6 +27429,11 @@ <h2 data-i18n="export.scale.h2">Grading scale</h2>
     editing.written.push({ label: '', max: 5, kind: 'short', expected: '' });
     renderWrittenList();
   });
+  on($('#btnAddForm'), 'click', function () {
+    editing.forms = editing.forms || [];
+    editing.forms.push({ id: nextFormLetter(), code: unusedCode(), key: [], rules: {} });
+    renderForms();
+  });
   ['#f_mcCount', '#f_choices'].forEach(function (sel) {
     on($(sel), 'change', function () {
       editing.mc.count = Q.clamp(parseInt($('#f_mcCount').value, 10) || 0, 0, 300);
diff --git a/js/app.js b/js/app.js
index 1dc8a4f..92cb198 100644
--- a/js/app.js
+++ b/js/app.js
@@ -3484,6 +3484,11 @@ function wireUI() {
     editing.written.push({ label: '', max: 5, kind: 'short', expected: '' });
     renderWrittenList();
   });
+  on($('#btnAddForm'), 'click', function () {
+    editing.forms = editing.forms || [];
+    editing.forms.push({ id: nextFormLetter(), code: unusedCode(), key: [], rules: {} });
+    renderForms();
+  });
   ['#f_mcCount', '#f_choices'].forEach(function (sel) {
     on($(sel), 'change', function () {
       editing.mc.count = Q.clamp(parseInt($('#f_mcCount').value, 10) || 0, 0, 300);
diff --git a/sw.js b/sw.js
index 5c8e797..b308459 100644
--- a/sw.js
+++ b/sw.js
@@ -15,7 +15,7 @@
  * a stale name ships an update nobody receives, and a stale list leaves a
  * file the app needs simply missing when offline.
  */
-var CACHE = 'quickgrade-c996e665524d';
+var CACHE = 'quickgrade-462da285317f';
 var SHELL = [
   './',
   './index.html',