diff --git a/kcmkwin/common/effectmodel.h b/kcmkwin/common/effectmodel.h
--- a/kcmkwin/common/effectmodel.h
+++ b/kcmkwin/common/effectmodel.h
@@ -29,6 +29,7 @@
 #include <QAbstractItemModel>
 #include <QString>
 #include <QUrl>
+#include <QWindow>
 
 namespace KWin
 {
@@ -187,6 +188,14 @@
      **/
     QModelIndex findByPluginId(const QString &pluginId) const;
 
+    /**
+     * Shows a configuration dialog for a given effect.
+     *
+     * @param index An effect represented by the given index.
+     * @param transientParent The transient parent of the configuration dialog.
+     **/
+    void requestConfigure(const QModelIndex &index, QWindow *transientParent);
+
 protected:
     enum class Kind {
         BuiltIn,
diff --git a/kcmkwin/common/effectmodel.cpp b/kcmkwin/common/effectmodel.cpp
--- a/kcmkwin/common/effectmodel.cpp
+++ b/kcmkwin/common/effectmodel.cpp
@@ -26,6 +26,7 @@
 #include <kwin_effects_interface.h>
 
 #include <KAboutData>
+#include <KCModule>
 #include <KLocalizedString>
 #include <KPackage/PackageLoader>
 #include <KPluginLoader>
@@ -36,6 +37,10 @@
 #include <QDBusInterface>
 #include <QDBusMessage>
 #include <QDBusPendingCall>
+#include <QDialog>
+#include <QDialogButtonBox>
+#include <QPushButton>
+#include <QVBoxLayout>
 
 namespace KWin
 {
@@ -536,6 +541,78 @@
     return index(std::distance(m_effectsList.constBegin(), it), 0);
 }
 
+static KCModule *findBinaryConfig(const QString &pluginId, QObject *parent)
+{
+    return KPluginTrader::createInstanceFromQuery<KCModule>(
+        QStringLiteral("kwin/effects/configs/"),
+        QString(),
+        QStringLiteral("'%1' in [X-KDE-ParentComponents]").arg(pluginId),
+        parent
+    );
+}
+
+static KCModule *findScriptedConfig(const QString &pluginId, QObject *parent)
+{
+    const auto offers = KPluginTrader::self()->query(
+        QStringLiteral("kwin/effects/configs/"),
+        QString(),
+        QStringLiteral("[X-KDE-Library] == 'kcm_kwin4_genericscripted'")
+    );
+
+    if (offers.isEmpty()) {
+        return nullptr;
+    }
+
+    const KPluginInfo &generic = offers.first();
+    KPluginLoader loader(generic.libraryPath());
+    KPluginFactory *factory = loader.factory();
+    if (!factory) {
+        return nullptr;
+    }
+
+    return factory->create<KCModule>(pluginId, parent);
+}
+
+void EffectModel::requestConfigure(const QModelIndex &index, QWindow *transientParent)
+{
+    if (!index.isValid()) {
+        return;
+    }
+
+    QPointer<QDialog> dialog = new QDialog();
+
+    KCModule *module = index.data(ScriptedRole).toBool()
+        ? findScriptedConfig(index.data(ServiceNameRole).toString(), dialog)
+        : findBinaryConfig(index.data(ServiceNameRole).toString(), dialog);
+    if (!module) {
+        delete dialog;
+        return;
+    }
+
+    dialog->setWindowTitle(index.data(NameRole).toString());
+    dialog->winId();
+    dialog->windowHandle()->setTransientParent(transientParent);
+
+    auto buttons = new QDialogButtonBox(
+        QDialogButtonBox::Ok |
+        QDialogButtonBox::Cancel |
+        QDialogButtonBox::RestoreDefaults,
+        dialog
+    );
+    connect(buttons, &QDialogButtonBox::accepted, dialog, &QDialog::accept);
+    connect(buttons, &QDialogButtonBox::rejected, dialog, &QDialog::reject);
+    connect(buttons->button(QDialogButtonBox::RestoreDefaults), &QPushButton::clicked,
+        module, &KCModule::defaults);
+
+    auto layout = new QVBoxLayout(dialog);
+    layout->addWidget(module);
+    layout->addWidget(buttons);
+
+    dialog->exec();
+
+    delete dialog;
+}
+
 bool EffectModel::shouldStore(const EffectData &data) const
 {
     Q_UNUSED(data)
diff --git a/kcmkwin/kwindesktop/virtualdesktops.cpp b/kcmkwin/kwindesktop/virtualdesktops.cpp
--- a/kcmkwin/kwindesktop/virtualdesktops.cpp
+++ b/kcmkwin/kwindesktop/virtualdesktops.cpp
@@ -22,16 +22,8 @@
 
 #include <KAboutApplicationDialog>
 #include <KAboutData>
-#include <KCModule>
 #include <KConfigGroup>
 #include <KLocalizedString>
-#include <KPluginFactory>
-#include <KPluginTrader>
-
-#include <QDialog>
-#include <QDialogButtonBox>
-#include <QPushButton>
-#include <QVBoxLayout>
 
 K_PLUGIN_FACTORY_WITH_JSON(VirtualDesktopsFactory, "kcm_kwin_virtualdesktops.json", registerPlugin<KWin::VirtualDesktops>();)
 
@@ -198,50 +190,7 @@
         return;
     }
 
-    const QString name = index.data(AnimationsModel::NameRole).toString();
-    const QString serviceName = index.data(AnimationsModel::ServiceNameRole).toString();
-
-    QPointer<QDialog> configDialog = new QDialog();
-
-    KCModule *kcm = KPluginTrader::createInstanceFromQuery<KCModule>(
-        QStringLiteral("kwin/effects/configs/"),
-        QString(),
-        QStringLiteral("'%1' in [X-KDE-ParentComponents]").arg(serviceName),
-        configDialog
-    );
-
-    if (!kcm) {
-        delete configDialog;
-        return;
-    }
-
-    configDialog->setWindowTitle(name);
-    configDialog->setLayout(new QVBoxLayout);
-
-    auto buttons = new QDialogButtonBox(
-        QDialogButtonBox::Ok |
-        QDialogButtonBox::Cancel |
-        QDialogButtonBox::RestoreDefaults,
-        configDialog
-    );
-    QObject::connect(buttons, &QDialogButtonBox::accepted, configDialog, &QDialog::accept);
-    QObject::connect(buttons, &QDialogButtonBox::rejected, configDialog, &QDialog::reject);
-    QObject::connect(buttons->button(QDialogButtonBox::RestoreDefaults), &QPushButton::clicked, kcm, &KCModule::defaults);
-
-    auto showWidget = new QWidget(configDialog);
-    auto layout = new QVBoxLayout;
-    showWidget->setLayout(layout);
-    layout->addWidget(kcm);
-    configDialog->layout()->addWidget(showWidget);
-    configDialog->layout()->addWidget(buttons);
-
-    if (configDialog->exec() == QDialog::Accepted) {
-        kcm->save();
-    } else if (!configDialog.isNull()) {
-        kcm->load();
-    }
-
-    delete configDialog;
+    m_animationsModel->requestConfigure(index, nullptr);
 }
 
 void VirtualDesktops::showAboutAnimation()
diff --git a/kcmkwin/kwineffects/kcm.cpp b/kcmkwin/kwineffects/kcm.cpp
--- a/kcmkwin/kwineffects/kcm.cpp
+++ b/kcmkwin/kwineffects/kcm.cpp
@@ -20,16 +20,10 @@
 #include "effectsfilterproxymodel.h"
 
 #include <KAboutData>
-#include <KCModule>
 #include <KLocalizedString>
 #include <KNS3/DownloadDialog>
-#include <KPluginFactory>
-#include <KPluginTrader>
 
-#include <QDialogButtonBox>
-#include <QPushButton>
 #include <QQuickWindow>
-#include <QVBoxLayout>
 #include <QWindow>
 
 K_PLUGIN_FACTORY_WITH_JSON(DesktopEffectsKCMFactory,
@@ -106,80 +100,16 @@
     delete dialog;
 }
 
-static KCModule *findBinaryConfig(const QString &pluginId, QObject *parent)
-{
-    return KPluginTrader::createInstanceFromQuery<KCModule>(
-        QStringLiteral("kwin/effects/configs/"),
-        QString(),
-        QStringLiteral("'%1' in [X-KDE-ParentComponents]").arg(pluginId),
-        parent
-    );
-}
-
-static KCModule *findScriptedConfig(const QString &pluginId, QObject *parent)
-{
-    const auto offers = KPluginTrader::self()->query(
-        QStringLiteral("kwin/effects/configs/"),
-        QString(),
-        QStringLiteral("[X-KDE-Library] == 'kcm_kwin4_genericscripted'")
-    );
-
-    if (offers.isEmpty()) {
-        return nullptr;
-    }
-
-    const KPluginInfo &generic = offers.first();
-    KPluginLoader loader(generic.libraryPath());
-    KPluginFactory *factory = loader.factory();
-    if (!factory) {
-        return nullptr;
-    }
-
-    return factory->create<KCModule>(pluginId, parent);
-}
-
 void DesktopEffectsKCM::configure(const QString &pluginId, QQuickItem *context)
 {
-    const QModelIndex idx = m_model->findByPluginId(pluginId);
-    if (!idx.isValid()) {
-        return;
-    }
-
-    QPointer<QDialog> dialog = new QDialog();
-
-    KCModule *module = idx.data(EffectModel::ScriptedRole).toBool()
-        ? findScriptedConfig(pluginId, dialog)
-        : findBinaryConfig(pluginId, dialog);
-    if (!module) {
-        delete dialog;
-        return;
-    }
-
-    dialog->setWindowTitle(idx.data(EffectModel::NameRole).toString());
-    dialog->winId();
-
-    auto buttons = new QDialogButtonBox(
-        QDialogButtonBox::Ok |
-        QDialogButtonBox::Cancel |
-        QDialogButtonBox::RestoreDefaults,
-        dialog
-    );
-    connect(buttons, &QDialogButtonBox::accepted, dialog, &QDialog::accept);
-    connect(buttons, &QDialogButtonBox::rejected, dialog, &QDialog::reject);
-    connect(buttons->button(QDialogButtonBox::RestoreDefaults), &QPushButton::clicked,
-        module, &KCModule::defaults);
-
-    auto layout = new QVBoxLayout(dialog);
-    layout->addWidget(module);
-    layout->addWidget(buttons);
+    const QModelIndex index = m_model->findByPluginId(pluginId);
 
+    QWindow *transientParent = nullptr;
     if (context && context->window()) {
-        dialog->windowHandle()->setTransientParent(context->window());
+        transientParent = context->window();
     }
 
-    dialog->exec();
-
-    delete dialog;
+    m_model->requestConfigure(index, transientParent);
 }
 
 void DesktopEffectsKCM::updateNeedsSave()