diff --git a/src/controllers/Group.cpp b/src/controllers/Group.cpp
index dbcd4eba..da6ded2d 100644
--- a/src/controllers/Group.cpp
+++ b/src/controllers/Group.cpp
@@ -164,12 +164,12 @@ void Group::setLayout(Layout *dt)
 
 void Group::renameTab(int index, const QString &title)
 {
-    dynamic_cast<Views::GroupViewInterface *>(view())->renameTab(index, title);
+    m_tabBar->renameTab(index, title);
 }
 
 void Group::changeTabIcon(int index, const QIcon &icon)
 {
-    dynamic_cast<Views::GroupViewInterface *>(view())->changeTabIcon(index, icon);
+    m_tabBar->changeTabIcon(index, icon);
 }
 
 int Group::nonContentsHeight() const
@@ -334,7 +334,7 @@ void Group::setCurrentTabIndex(int index)
     if (m_inCtor || m_inDtor)
         return;
 
-    dynamic_cast<Views::GroupViewInterface *>(view())->setCurrentTabIndex_impl(index);
+    m_tabBar->setCurrentIndex(index);
 }
 
 void Group::setCurrentDockWidget(DockWidget *dw)
@@ -342,7 +342,7 @@ void Group::setCurrentDockWidget(DockWidget *dw)
     if (m_inCtor || m_inDtor)
         return;
 
-    dynamic_cast<Views::GroupViewInterface *>(view())->setCurrentDockWidget_impl(dw);
+    m_tabBar->setCurrentDockWidget(dw);
 }
 
 void Group::insertDockWidget(DockWidget *dw, int index)
@@ -359,7 +359,7 @@ Controllers::DockWidget *Group::dockWidgetAt(int index) const
     if (m_inCtor || m_inDtor)
         return nullptr;
 
-    return dynamic_cast<Views::GroupViewInterface *>(view())->dockWidgetAt_impl(index);
+    return m_tabBar->dockWidgetAt(index);
 }
 
 Controllers::DockWidget *Group::currentDockWidget() const
@@ -367,7 +367,7 @@ Controllers::DockWidget *Group::currentDockWidget() const
     if (m_inCtor || m_inDtor)
         return nullptr;
 
-    return dynamic_cast<Views::GroupViewInterface *>(view())->currentDockWidget_impl();
+    return m_tabBar->currentDockWidget();
 }
 
 int Group::dockWidgetCount() const
diff --git a/src/dummy/views/Group_dummy.cpp b/src/dummy/views/Group_dummy.cpp
index 8c45fda8..a50c063b 100644
--- a/src/dummy/views/Group_dummy.cpp
+++ b/src/dummy/views/Group_dummy.cpp
@@ -59,49 +59,10 @@ void Group_dummy::removeWidget_impl(Controllers::DockWidget *)
 {
 }
 
-int Group_dummy::indexOfDockWidget_impl(const Controllers::DockWidget *)
-{
-    return 0;
-}
-
-int Group_dummy::currentIndex() const
-{
-    return 0;
-}
-
-void Group_dummy::setCurrentTabIndex_impl(int)
-{
-}
-
-void Group_dummy::setCurrentDockWidget_impl(Controllers::DockWidget *)
-{
-}
-
 void Group_dummy::insertDockWidget_impl(Controllers::DockWidget *, int)
 {
 }
 
-Controllers::DockWidget *Group_dummy::dockWidgetAt_impl(int) const
-{
-    return nullptr;
-}
-
-Controllers::DockWidget *Group_dummy::currentDockWidget_impl() const
-{
-    return nullptr;
-}
-
-void Group_dummy::renameTab(int, const QString &)
-{
-    // Not needed for QtQuick. Our model reacts to titleChanged()
-}
-
-void Group_dummy::changeTabIcon(int index, const QIcon &)
-{
-    Q_UNUSED(index);
-    qDebug() << Q_FUNC_INFO << "Not implemented";
-}
-
 QSize Group_dummy::minSize() const
 {
     const QSize contentsSize = m_group->dockWidgetsMinSize();
diff --git a/src/dummy/views/Group_dummy.h b/src/dummy/views/Group_dummy.h
index 5879ff81..cb441389 100644
--- a/src/dummy/views/Group_dummy.h
+++ b/src/dummy/views/Group_dummy.h
@@ -32,25 +32,13 @@ public:
     explicit Group_dummy(Controllers::Group *controller, View *parent = nullptr);
     ~Group_dummy() override;
 
-    /// @reimp
     QSize minSize() const override;
-
-    /// @reimp
     QSize maxSizeHint() const override;
-
     QRect dragRect() const override;
-    int currentIndex() const;
 
 protected:
     void removeWidget_impl(Controllers::DockWidget *) override;
-    int indexOfDockWidget_impl(const Controllers::DockWidget *) override;
-    void setCurrentTabIndex_impl(int index) override;
-    void setCurrentDockWidget_impl(Controllers::DockWidget *) override;
     void insertDockWidget_impl(Controllers::DockWidget *, int index) override;
-    Controllers::DockWidget *dockWidgetAt_impl(int index) const override;
-    Controllers::DockWidget *currentDockWidget_impl() const override;
-    void renameTab(int index, const QString &) override;
-    void changeTabIcon(int index, const QIcon &) override;
     int nonContentsHeight() const override;
 
 private:
diff --git a/src/qtquick/views/Group_qtquick.cpp b/src/qtquick/views/Group_qtquick.cpp
index a7a7884a..31643251 100644
--- a/src/qtquick/views/Group_qtquick.cpp
+++ b/src/qtquick/views/Group_qtquick.cpp
@@ -113,26 +113,11 @@ void Group_qtquick::removeWidget_impl(Controllers::DockWidget *dw)
     disconnect(m_connections.take(dw));
 }
 
-int Group_qtquick::indexOfDockWidget_impl(const Controllers::DockWidget *dw)
-{
-    return m_group->indexOfDockWidget(dw);
-}
-
 int Group_qtquick::currentIndex() const
 {
     return m_group->currentIndex();
 }
 
-void Group_qtquick::setCurrentTabIndex_impl(int index)
-{
-    setCurrentDockWidget_impl(m_group->dockWidgetAt(index));
-}
-
-void Group_qtquick::setCurrentDockWidget_impl(Controllers::DockWidget *dw)
-{
-    m_group->tabBar()->setCurrentDockWidget(dw);
-}
-
 void Group_qtquick::insertDockWidget_impl(Controllers::DockWidget *dw, int index)
 {
     QPointer<Controllers::Group> oldFrame = dw->d->group();
@@ -148,7 +133,7 @@ void Group_qtquick::insertDockWidget_impl(Controllers::DockWidget *dw, int index
             });
 
         m_connections[dw] = conn;
-        setCurrentDockWidget_impl(dw);
+        m_group->setCurrentDockWidget(dw);
 
         if (oldFrame && oldFrame->beingDeletedLater()) {
             // give it a push and delete it immediately.
@@ -166,27 +151,6 @@ void Group_qtquick::insertDockWidget_impl(Controllers::DockWidget *dw, int index
     }
 }
 
-Controllers::DockWidget *Group_qtquick::dockWidgetAt_impl(int index) const
-{
-    return tabBarView()->dockWidgetAt(index);
-}
-
-Controllers::DockWidget *Group_qtquick::currentDockWidget_impl() const
-{
-    return stackView()->currentDockWidget();
-}
-
-void Group_qtquick::renameTab(int, const QString &)
-{
-    // Not needed for QtQuick. Our model reacts to titleChanged()
-}
-
-void Group_qtquick::changeTabIcon(int index, const QIcon &)
-{
-    Q_UNUSED(index);
-    qDebug() << Q_FUNC_INFO << "Not implemented";
-}
-
 void Group_qtquick::setStackLayout(QQuickItem *stackLayout)
 {
     if (m_stackLayout || !stackLayout) {
diff --git a/src/qtquick/views/Group_qtquick.h b/src/qtquick/views/Group_qtquick.h
index 8bdaa88d..57a34325 100644
--- a/src/qtquick/views/Group_qtquick.h
+++ b/src/qtquick/views/Group_qtquick.h
@@ -68,14 +68,7 @@ public:
 
 protected:
     void removeWidget_impl(Controllers::DockWidget *) override;
-    int indexOfDockWidget_impl(const Controllers::DockWidget *) override;
-    void setCurrentTabIndex_impl(int index) override;
-    void setCurrentDockWidget_impl(Controllers::DockWidget *) override;
     void insertDockWidget_impl(Controllers::DockWidget *, int index) override;
-    Controllers::DockWidget *dockWidgetAt_impl(int index) const override;
-    Controllers::DockWidget *currentDockWidget_impl() const override;
-    void renameTab(int index, const QString &) override;
-    void changeTabIcon(int index, const QIcon &) override;
 
     Q_INVOKABLE void setStackLayout(QQuickItem *);
 
diff --git a/src/qtwidgets/views/Group_qtwidgets.cpp b/src/qtwidgets/views/Group_qtwidgets.cpp
index 4eb5201a..8941c1bb 100644
--- a/src/qtwidgets/views/Group_qtwidgets.cpp
+++ b/src/qtwidgets/views/Group_qtwidgets.cpp
@@ -79,16 +79,6 @@ void Group_qtwidgets::free_impl()
     delete this;
 }
 
-void Group_qtwidgets::renameTab(int index, const QString &text)
-{
-    m_group->tabBar()->renameTab(index, text);
-}
-
-void Group_qtwidgets::changeTabIcon(int index, const QIcon &icon)
-{
-    m_group->tabBar()->changeTabIcon(index, icon);
-}
-
 int Group_qtwidgets::nonContentsHeight() const
 {
     Controllers::TitleBar *tb = m_group->titleBar();
@@ -97,16 +87,6 @@ int Group_qtwidgets::nonContentsHeight() const
     return (tb->isVisible() ? tb->height() : 0) + (tabBar->isVisible() ? tabBar->height() : 0);
 }
 
-int Group_qtwidgets::indexOfDockWidget_impl(const Controllers::DockWidget *dw)
-{
-    return m_group->tabBar()->indexOfDockWidget(dw);
-}
-
-void Group_qtwidgets::setCurrentDockWidget_impl(Controllers::DockWidget *dw)
-{
-    m_group->tabBar()->setCurrentDockWidget(dw);
-}
-
 void Group_qtwidgets::insertDockWidget_impl(Controllers::DockWidget *dw, int index)
 {
     m_group->stack()->insertDockWidget(dw, index);
@@ -117,21 +97,6 @@ void Group_qtwidgets::removeWidget_impl(Controllers::DockWidget *dw)
     m_group->tabBar()->removeDockWidget(dw);
 }
 
-void Group_qtwidgets::setCurrentTabIndex_impl(int index)
-{
-    m_group->tabBar()->setCurrentIndex(index);
-}
-
-KDDockWidgets::Controllers::DockWidget *Group_qtwidgets::currentDockWidget_impl() const
-{
-    return m_group->stack()->currentDockWidget();
-}
-
-KDDockWidgets::Controllers::DockWidget *Group_qtwidgets::dockWidgetAt_impl(int index) const
-{
-    return m_group->tabBar()->dockWidgetAt(index);
-}
-
 void Group_qtwidgets::paintEvent(QPaintEvent *)
 {
     if (freed())
diff --git a/src/qtwidgets/views/Group_qtwidgets.h b/src/qtwidgets/views/Group_qtwidgets.h
index 773b714c..44479f56 100644
--- a/src/qtwidgets/views/Group_qtwidgets.h
+++ b/src/qtwidgets/views/Group_qtwidgets.h
@@ -27,15 +27,8 @@ public:
     explicit Group_qtwidgets(Controllers::Group *controller, QWidget *parent = nullptr);
     void init() override;
 
-    void renameTab(int index, const QString &) override;
-    void changeTabIcon(int index, const QIcon &) override;
     void removeWidget_impl(Controllers::DockWidget *) override;
-    int indexOfDockWidget_impl(const Controllers::DockWidget *) override;
-    void setCurrentTabIndex_impl(int index) override;
-    void setCurrentDockWidget_impl(Controllers::DockWidget *) override;
     void insertDockWidget_impl(Controllers::DockWidget *, int index) override;
-    Controllers::DockWidget *dockWidgetAt_impl(int index) const override;
-    Controllers::DockWidget *currentDockWidget_impl() const override;
     int nonContentsHeight() const override;
     QRect dragRect() const override;
 
diff --git a/src/views/GroupViewInterface.h b/src/views/GroupViewInterface.h
index c54d5a87..e821f28a 100644
--- a/src/views/GroupViewInterface.h
+++ b/src/views/GroupViewInterface.h
@@ -35,15 +35,8 @@ class DOCKS_EXPORT GroupViewInterface
 public:
     explicit GroupViewInterface(Controllers::Group *);
     virtual ~GroupViewInterface();
-    virtual void renameTab(int index, const QString &) = 0;
-    virtual void changeTabIcon(int index, const QIcon &) = 0;
     virtual void removeWidget_impl(Controllers::DockWidget *) = 0;
-    virtual int indexOfDockWidget_impl(const Controllers::DockWidget *) = 0;
-    virtual void setCurrentTabIndex_impl(int index) = 0;
-    virtual void setCurrentDockWidget_impl(Controllers::DockWidget *) = 0;
     virtual void insertDockWidget_impl(Controllers::DockWidget *, int index) = 0;
-    virtual Controllers::DockWidget *dockWidgetAt_impl(int index) const = 0;
-    virtual Controllers::DockWidget *currentDockWidget_impl() const = 0;
     virtual int nonContentsHeight() const = 0;
     virtual QRect dragRect() const = 0;
 
diff --git a/src/views/StackViewInterface.h b/src/views/StackViewInterface.h
index 423dc387..060c563d 100644
--- a/src/views/StackViewInterface.h
+++ b/src/views/StackViewInterface.h
@@ -22,7 +22,6 @@ QT_END_NAMESPACE
 namespace KDDockWidgets {
 
 namespace Controllers {
-class DockWidget;
 class Stack;
 }