diff --git a/scripts/barrier_picker_app/static/index.html b/scripts/barrier_picker_app/static/index.html
index 9374050..5e5a1f1 100644
--- a/scripts/barrier_picker_app/static/index.html
+++ b/scripts/barrier_picker_app/static/index.html
@@ -76,9 +76,8 @@
     <div id="help">
       <kbd>Space</kbd> play/pause &nbsp;·&nbsp;
       <kbd>←</kbd> / <kbd>→</kbd> ±5 s &nbsp;·&nbsp;
-      <kbd>Shift</kbd>+arrows ±1 s &nbsp;·&nbsp;
-      <kbd>Ctrl</kbd>+arrows ±0.1 s &nbsp;·&nbsp;
-      <kbd>,</kbd> / <kbd>.</kbd> ±1 frame
+      <kbd>Shift</kbd>+arrows ±30 s &nbsp;·&nbsp;
+      drag the seekbar for finer control
     </div>
     <div id="flash"></div>
   </main>
@@ -223,20 +222,11 @@
           break;
         case 'ArrowLeft':
           stop();
-          player.currentTime -= e.ctrlKey ? 0.1 : (e.shiftKey ? 1 : 5);
+          player.currentTime -= e.shiftKey ? 30 : 5;
           break;
         case 'ArrowRight':
           stop();
-          player.currentTime += e.ctrlKey ? 0.1 : (e.shiftKey ? 1 : 5);
-          break;
-        case ',':
-          stop();
-          // Step back one frame (assume 25 fps if unknown)
-          player.currentTime -= 1 / 25;
-          break;
-        case '.':
-          stop();
-          player.currentTime += 1 / 25;
+          player.currentTime += e.shiftKey ? 30 : 5;
           break;
         case '1': stop(); submit('all'); break;
         case '2': stop(); submit('upper'); break;