diff --git a/containment.cpp b/containment.cpp
index 5e6416b19..c5db1e990 100644
--- a/containment.cpp
+++ b/containment.cpp
@@ -208,6 +208,11 @@ void Containment::setContainmentType(Containment::Type type)
 
             Plasma::Widget *zoomOutTool = addToolBoxTool("zoomOut", "zoom-out", i18n("Zoom Out"));
             connect(zoomOutTool, SIGNAL(clicked()), this, SIGNAL(zoomOut()));
+
+            //FIXME how do we access the widget later to change it between lock and unlock?
+            //FIXME only show if user's allowed to toggle
+            //Plasma::Widget *lockTool = addToolBoxTool("lockWidgets", "object-locked", i18n("Lock Widgets"));
+            //connect(lockTool, SIGNAL(clicked()), this, SLOT(toggleDesktopImmutability()));
         }
     } else {
         delete d->toolbox;
@@ -418,6 +423,15 @@ Location Containment::location() const
     return d->location;
 }
 
+void Containment::toggleDesktopImmutability()
+{
+    if (corona()) {
+        corona()->setImmutable(!corona()->isImmutable());
+    } else {
+        setImmutable(!isImmutable());
+    }
+}
+
 void Containment::clearApplets()
 {
     qDeleteAll(d->applets);
@@ -705,7 +719,7 @@ void Containment::setScreen(int screen)
     if (screen < -1) {
         screen = -1;
     }
-
+//FIXME several blatant bugs here
     //kDebug() << "setting screen to " << screen << "and type is" << containmentType();
     if (screen < numScreens && screen > -1) {
         QRect r = desktop->screenGeometry(screen);
diff --git a/containment.h b/containment.h
index b59140d3c..515761647 100644
--- a/containment.h
+++ b/containment.h
@@ -331,6 +331,13 @@ class PLASMA_EXPORT Containment : public Applet
          */
         void setFormFactor(Plasma::FormFactor formFactor);
 
+        /**
+         * Locks or unlocks plasma's applets.
+         * When plasma is locked, applets cannot be transformed, added or deleted
+         * but they can still be configured.
+         */
+        void toggleDesktopImmutability();
+
         /**
          * Returns the Corona (if any) that this Containment is hosted by
          */