Index: gui/ksysguard.h
===================================================================
--- gui/ksysguard.h
+++ gui/ksysguard.h
@@ -75,7 +75,8 @@
     void updateStatusBar();
     void currentTabChanged(int index);
     void updateProcessCount();
-    void configureCurrentSheet();
+    void configureCurrentSheet();    
+    void toggleShowMenuBar();    
 
   private:
     void setSwapInfo( qlonglong, qlonglong, const QString& );
Index: gui/ksysguard.cpp
===================================================================
--- gui/ksysguard.cpp
+++ gui/ksysguard.cpp
@@ -51,6 +51,7 @@
 #include <QLabel>
 #include <QSplitter>
 #include <QStatusBar>
+#include <QMenuBar>
 
 #include <KAboutData>
 #include <KActionCollection>
@@ -69,6 +70,7 @@
 #include <ksgrd/SensorManager.h>
 #include <processui/ksysguardprocesslist.h>
 
+
 //Comment out to stop ksysguard from forking.  Good for debugging
 //#define FORK_KSYSGUARD
 
@@ -143,10 +145,21 @@
   mConfigureSheetAction = actionCollection()->addAction( QStringLiteral("configure_sheet") );
   mConfigureSheetAction->setIcon( QIcon::fromTheme(QStringLiteral("configure")) );
   connect(mConfigureSheetAction, &QAction::triggered, this, &TopLevel::configureCurrentSheet);
-
+    
+  // setup 'Settings' menu
+  KToggleAction* showMenuBar = KStandardAction::showMenubar(nullptr, nullptr, actionCollection());
+    connect(showMenuBar, &KToggleAction::triggered,                  
+            this, &TopLevel::toggleShowMenuBar, Qt::QueuedConnection);
+    
   retranslateUi();
 }
 
+void TopLevel::toggleShowMenuBar()
+{
+    const bool visible = menuBar()->isVisible();
+    menuBar()->setVisible(!visible);    
+}
+
 void TopLevel::setLocalProcessController(ProcessController * localProcessController)
 {
   Q_ASSERT(!mLocalProcessController);