diff --git a/src/plugins/qmlpreview/qmldebugtranslationwidget.cpp b/src/plugins/qmlpreview/qmldebugtranslationwidget.cpp
index 7dc2feed746..7c0cd3861f6 100644
--- a/src/plugins/qmlpreview/qmldebugtranslationwidget.cpp
+++ b/src/plugins/qmlpreview/qmldebugtranslationwidget.cpp
@@ -91,8 +91,9 @@ QObject *getPreviewPlugin()
 
 namespace QmlPreview {
 
-QmlDebugTranslationWidget::QmlDebugTranslationWidget(QWidget *parent)
+QmlDebugTranslationWidget::QmlDebugTranslationWidget(QWidget *parent, TestLanguageGetter languagesGetterMethod)
     : QWidget(parent)
+    , m_testLanguagesGetter(languagesGetterMethod)
 {
     auto mainLayout = new QVBoxLayout(this);
 
@@ -233,6 +234,7 @@ void QmlDebugTranslationWidget::updateStartupProjectTranslations()
 
 void QmlDebugTranslationWidget::updateCurrentTranslations(ProjectExplorer::Project *project)
 {
+    m_testLanguages.clear();
     for (int i = m_selectLanguageLayout->count()-1; i >= 0; --i) {
         auto layoutItem = m_selectLanguageLayout->takeAt(i);
         delete layoutItem->widget();
@@ -245,28 +247,23 @@ void QmlDebugTranslationWidget::updateCurrentTranslations(ProjectExplorer::Proje
         connect(multiLanguageAspect, &QmlProjectManager::QmlMultiLanguageAspect::changed,
                 this, &QmlDebugTranslationWidget::updateStartupProjectTranslations,
                 Qt::UniqueConnection);
+        auto languageLabel = new QLabel();
+        languageLabel->setText(tr("Select which language should be tested:"));
+        m_selectLanguageLayout->addWidget(languageLabel);
         if (multiLanguageAspect->value()) {
-            m_selectLanguageLayout->addWidget(new QLabel(
-                tr("Current language is \'<b>%1</b>\' can be changed in the 'Translation' tab.")
-                    .arg(multiLanguageAspect->currentLocale())));
-            m_testLanguages.clear();
-            m_testLanguages.append(multiLanguageAspect->currentLocale());
-        } else {
-            m_selectLanguageLayout->addWidget(new QLabel(tr("Select which language should be tested:")));
-            QString errorMessage;
-            for (auto language : project->availableQmlPreviewTranslations(&errorMessage)) {
-                auto languageCheckBox = new QCheckBox(language);
-                m_selectLanguageLayout->addWidget(languageCheckBox);
-                connect(languageCheckBox, &QCheckBox::stateChanged, [this, language] (int state) {
-                    if (state == Qt::Checked)
-                        m_testLanguages.append(language);
-                    else
-                        m_testLanguages.removeAll(language);
+            addLanguageCheckBoxes({multiLanguageAspect->currentLocale()});
+            if (m_testLanguagesGetter) {
+                auto addTestLanguages = new QPushButton(tr("Add Test Languages"));
+                m_selectLanguageLayout->addWidget(addTestLanguages);
+                connect(addTestLanguages, &QPushButton::clicked, [this]() {
+                    addLanguageCheckBoxes(m_testLanguagesGetter());
                 });
-                languageCheckBox->setChecked(true);
             }
-            m_selectLanguageLayout->addItem(new QSpacerItem(20, 20, QSizePolicy::Expanding, QSizePolicy::Minimum));
+        } else {
+            QString errorMessage;
+            addLanguageCheckBoxes(project->availableQmlPreviewTranslations(&errorMessage));
         }
+        m_selectLanguageLayout->addItem(new QSpacerItem(20, 20, QSizePolicy::Expanding, QSizePolicy::Minimum));
     }
 }
 
@@ -452,4 +449,19 @@ QString QmlDebugTranslationWidget::runButtonText(bool isRunning)
     return tr("Run language tests");
 }
 
+void QmlDebugTranslationWidget::addLanguageCheckBoxes(const QStringList &languages)
+{
+    for (auto language : languages) {
+        auto languageCheckBox = new QCheckBox(language);
+        m_selectLanguageLayout->addWidget(languageCheckBox);
+        connect(languageCheckBox, &QCheckBox::stateChanged, [this, language] (int state) {
+            if (state == Qt::Checked)
+                m_testLanguages.append(language);
+            else
+                m_testLanguages.removeAll(language);
+        });
+        languageCheckBox->setChecked(true);
+    }
+}
+
 } // namespace QmlPreview
diff --git a/src/plugins/qmlpreview/qmldebugtranslationwidget.h b/src/plugins/qmlpreview/qmldebugtranslationwidget.h
index 944c7a59b93..7ea0760ac0f 100644
--- a/src/plugins/qmlpreview/qmldebugtranslationwidget.h
+++ b/src/plugins/qmlpreview/qmldebugtranslationwidget.h
@@ -51,11 +51,13 @@ namespace QmlPreview {
 
 class ProjectFileSelectionsWidget;
 
+
 class QMLPREVIEW_EXPORT QmlDebugTranslationWidget : public QWidget
 {
+    using TestLanguageGetter = std::function<QStringList()>;
     Q_OBJECT
 public:
-    explicit QmlDebugTranslationWidget(QWidget *parent = nullptr);
+    explicit QmlDebugTranslationWidget(QWidget *parent = nullptr, TestLanguageGetter languagesGetterMethod = {});
     ~QmlDebugTranslationWidget() override;
 
     void setCurrentFile(const Utils::FilePath &filepath);
@@ -75,6 +77,7 @@ private:
 
     QString singleFileButtonText(const QString &filePath);
     QString runButtonText(bool isRunning = false);
+    void addLanguageCheckBoxes(const QStringList &languages);
 
     QStringList m_testLanguages;
     QString m_lastUsedLanguageBeforeTest;
@@ -94,6 +97,7 @@ private:
     QString m_lastDir;
 
     QHBoxLayout *m_selectLanguageLayout;
+    TestLanguageGetter m_testLanguagesGetter;
 };
 
 } // namespace QmlPreview