diff --git a/kcmkwin/kwinoptions/main.cpp b/kcmkwin/kwinoptions/main.cpp
index 2116567c73..aabf3af347 100644
--- a/kcmkwin/kwinoptions/main.cpp
+++ b/kcmkwin/kwinoptions/main.cpp
@@ -42,8 +42,10 @@ class KFocusConfigStandalone : public KFocusConfig
     Q_OBJECT
 public:
     KFocusConfigStandalone(QWidget* parent, const QVariantList &)
-        : KFocusConfig(true, new KWinOptionsSettings(this), parent)
-    {}
+        : KFocusConfig(true, nullptr, parent)
+    {
+        initialize(new KWinOptionsSettings(this));
+    }
 };
 
 class KMovingConfigStandalone : public KMovingConfig
@@ -51,8 +53,10 @@ class KMovingConfigStandalone : public KMovingConfig
     Q_OBJECT
 public:
     KMovingConfigStandalone(QWidget* parent, const QVariantList &)
-        : KMovingConfig(true, new KWinOptionsSettings(this), parent)
-    {}
+        : KMovingConfig(true, nullptr, parent)
+    {
+        initialize(new KWinOptionsSettings(this));
+    }
 };
 
 class KAdvancedConfigStandalone : public KAdvancedConfig
@@ -60,8 +64,10 @@ class KAdvancedConfigStandalone : public KAdvancedConfig
     Q_OBJECT
 public:
     KAdvancedConfigStandalone(QWidget* parent, const QVariantList &)
-        : KAdvancedConfig(true, new KWinOptionsSettings(this), parent)
-    {}
+        : KAdvancedConfig(true, nullptr, parent)
+    {
+        initialize(new KWinOptionsSettings(this));
+    }
 };
 
 KWinOptions::KWinOptions(QWidget *parent, const QVariantList &)
diff --git a/kcmkwin/kwinoptions/mouse.cpp b/kcmkwin/kwinoptions/mouse.cpp
index a1f0fc8103..c1d6a370cf 100644
--- a/kcmkwin/kwinoptions/mouse.cpp
+++ b/kcmkwin/kwinoptions/mouse.cpp
@@ -41,8 +41,15 @@ KWinActionsConfigForm::KWinActionsConfigForm(QWidget *parent)
 KTitleBarActionsConfig::KTitleBarActionsConfig(bool _standAlone, KWinOptionsSettings *settings, QWidget *parent)
     : KCModule(parent), standAlone(_standAlone)
     , m_ui(new KWinMouseConfigForm(this))
-    , m_settings(settings)
 {
+    if (settings) {
+        initialize(settings);
+    }
+}
+
+void KTitleBarActionsConfig::initialize(KWinOptionsSettings *settings)
+{
+    m_settings = settings;
     addConfig(m_settings, this);
     load();
 }
@@ -77,8 +84,15 @@ void KTitleBarActionsConfig::save()
 KWindowActionsConfig::KWindowActionsConfig(bool _standAlone, KWinOptionsSettings *settings, QWidget *parent)
     : KCModule(parent), standAlone(_standAlone)
     , m_ui(new KWinActionsConfigForm(this))
-    , m_settings(settings)
 {
+    if (settings) {
+        initialize(settings);
+    }
+}
+
+void KWindowActionsConfig::initialize(KWinOptionsSettings *settings)
+{
+    m_settings = settings;
     addConfig(m_settings, this);
     load();
 }
diff --git a/kcmkwin/kwinoptions/mouse.h b/kcmkwin/kwinoptions/mouse.h
index 8302e1b232..c70a23afae 100644
--- a/kcmkwin/kwinoptions/mouse.h
+++ b/kcmkwin/kwinoptions/mouse.h
@@ -59,6 +59,7 @@ public:
     void save() override;
 
 protected:
+    void initialize(KWinOptionsSettings *settings);
     void showEvent(QShowEvent *ev) override;
     void changeEvent(QEvent *ev) override;
 
@@ -80,6 +81,7 @@ public:
     void save() override;
 
 protected:
+    void initialize(KWinOptionsSettings *settings);
     void showEvent(QShowEvent *ev) override;
 
 private:
diff --git a/kcmkwin/kwinoptions/windows.cpp b/kcmkwin/kwinoptions/windows.cpp
index ecc81b6538..f88cf9123b 100644
--- a/kcmkwin/kwinoptions/windows.cpp
+++ b/kcmkwin/kwinoptions/windows.cpp
@@ -61,8 +61,15 @@ KWinFocusConfigForm::KWinFocusConfigForm(QWidget* parent)
 KFocusConfig::KFocusConfig(bool _standAlone, KWinOptionsSettings *settings, QWidget * parent)
     : KCModule(parent), standAlone(_standAlone)
     , m_ui(new KWinFocusConfigForm(this))
-    , m_settings(settings)
 {
+    if (settings) {
+        initialize(settings);
+    }
+}
+
+void KFocusConfig::initialize(KWinOptionsSettings *settings)
+{
+    m_settings = settings;
     addConfig(m_settings, this);
 
     connect(m_ui->windowFocusPolicy, qOverload<int>(&QComboBox::currentIndexChanged), this, &KFocusConfig::focusPolicyChanged);
@@ -224,8 +231,15 @@ KWinAdvancedConfigForm::KWinAdvancedConfigForm(QWidget* parent)
 KAdvancedConfig::KAdvancedConfig(bool _standAlone, KWinOptionsSettings *settings, QWidget *parent)
     : KCModule(parent), standAlone(_standAlone)
     , m_ui(new KWinAdvancedConfigForm(this))
-    , m_settings(settings)
 {
+    if (settings) {
+        initialize(settings);
+    }
+}
+
+void KAdvancedConfig::initialize(KWinOptionsSettings *settings)
+{
+    m_settings = settings;
     addConfig(m_settings, this);
 
     m_ui->kcfg_Placement->setItemData(KWinOptionsSettings::PlacementChoices::Smart, "Smart");
@@ -267,10 +281,18 @@ KWinMovingConfigForm::KWinMovingConfigForm(QWidget* parent)
 }
 
 KMovingConfig::KMovingConfig(bool _standAlone, KWinOptionsSettings *settings, QWidget *parent)
-    : KCModule(parent), m_config(settings), standAlone(_standAlone)
+    : KCModule(parent), standAlone(_standAlone)
     , m_ui(new KWinMovingConfigForm(this))
 {
-    addConfig(m_config, this);
+    if (settings) {
+        initialize(settings);
+    }
+}
+
+void KMovingConfig::initialize(KWinOptionsSettings *settings)
+{
+    m_settings = settings;
+    addConfig(m_settings, this);
     load();
 }
 
@@ -297,7 +319,7 @@ void KMovingConfig::save(void)
     OrgKdeKwinEffectsInterface interface(QStringLiteral("org.kde.KWin"),
                                          QStringLiteral("/Effects"),
                                          QDBusConnection::sessionBus());
-    if (m_config->geometryTip()) {
+    if (m_settings->geometryTip()) {
         interface.loadEffect(KWin::BuiltInEffects::nameForEffect(KWin::BuiltInEffect::WindowGeometry));
     } else {
         interface.unloadEffect(KWin::BuiltInEffects::nameForEffect(KWin::BuiltInEffect::WindowGeometry));
diff --git a/kcmkwin/kwinoptions/windows.h b/kcmkwin/kwinoptions/windows.h
index 938411998d..279a968a21 100644
--- a/kcmkwin/kwinoptions/windows.h
+++ b/kcmkwin/kwinoptions/windows.h
@@ -82,6 +82,7 @@ Q_SIGNALS:
     void unmanagedWidgetStateChanged(bool changed);
 
 protected:
+    void initialize(KWinOptionsSettings *settings);
     void showEvent(QShowEvent *ev) override;
 
 private Q_SLOTS:
@@ -105,10 +106,11 @@ public:
     void save() override;
 
 protected:
+    void initialize(KWinOptionsSettings *settings);
     void showEvent(QShowEvent *ev) override;
 
 private:
-    KWinOptionsSettings *m_config;
+    KWinOptionsSettings *m_settings;
     bool     standAlone;
     KWinMovingConfigForm *m_ui;
 };
@@ -122,6 +124,7 @@ public:
     void save() override;
 
 protected:
+    void initialize(KWinOptionsSettings *settings);
     void showEvent(QShowEvent *ev) override;
 
 private: