diff --git a/src/plugins/score-lib-process/Process/Script/MultiScriptEditor.hpp b/src/plugins/score-lib-process/Process/Script/MultiScriptEditor.hpp
index 52aac03382..9523d02f49 100644
--- a/src/plugins/score-lib-process/Process/Script/MultiScriptEditor.hpp
+++ b/src/plugins/score-lib-process/Process/Script/MultiScriptEditor.hpp
@@ -27,6 +27,7 @@ class SCORE_LIB_PROCESS_EXPORT MultiScriptDialog : public QDialog
   void setText(int idx, const QString& str);
   void setError(const QString& str);
   void clearError();
+  void openInExternalEditor();
 
 protected:
   virtual void on_accepted() = 0;
diff --git a/src/plugins/score-lib-process/Process/Script/ScriptEditor.cpp b/src/plugins/score-lib-process/Process/Script/ScriptEditor.cpp
index f36c01b992..c05a75f091 100644
--- a/src/plugins/score-lib-process/Process/Script/ScriptEditor.cpp
+++ b/src/plugins/score-lib-process/Process/Script/ScriptEditor.cpp
@@ -5,6 +5,7 @@
 
 #include <QCodeEditor>
 #include <QDialogButtonBox>
+#include <QDir>
 #include <QFile>
 #include <QMessageBox>
 #include <QPlainTextEdit>
@@ -114,6 +115,11 @@ MultiScriptDialog::MultiScriptDialog(const score::DocumentContext& ctx, QWidget*
   connect(
       bbox->button(QDialogButtonBox::Close), &QPushButton::clicked, this,
       &QDialog::close);
+
+  auto openExternalBtn = new QPushButton{tr("Open in external editor.."), this};
+  connect(
+      openExternalBtn, &QPushButton::clicked, this, [this] { openInExternalEditor(); });
+  lay->addWidget(openExternalBtn);
 }
 
 void MultiScriptDialog::addTab(
@@ -187,9 +193,7 @@ void ScriptDialog::openInExternalEditor()
     return;
   }
 
-  QTextStream stream(&file);
-  QString scriptContent = this->text();
-  stream << scriptContent;
+  file.write(this->text().toUtf8());
   file.close();
 
   if(!QProcess::startDetached(editorPath, QStringList() << tempFile))
@@ -197,4 +201,58 @@ void ScriptDialog::openInExternalEditor()
     QMessageBox::warning(this, tr("Error"), tr("Failed to launch external editor"));
   }
 }
+
+void MultiScriptDialog::openInExternalEditor()
+{
+  QString editorPath = QSettings{}.value("Skin/DefaultEditor").toString();
+
+  if(editorPath.isEmpty())
+  {
+    QMessageBox::warning(
+        this, tr("Error"), tr("no 'Default editor' configured in score settings"));
+    return;
+  }
+
+  if(!QFile::exists(editorPath))
+  {
+    QMessageBox::warning(
+        this, tr("Error"), tr("the configured external editor does not exist."));
+    return;
+  }
+
+  QString tempDir = QStandardPaths::writableLocation(QStandardPaths::TempLocation);
+  QDir dir(tempDir);
+  QStringList openedFiles;
+
+  for(int i = 0; i < m_tabs->count(); ++i)
+  {
+    QString tabName = m_tabs->tabText(i);
+    QString tempFile = tempDir + "/" + tabName + ".js";
+
+    QFile file(tempFile);
+    if(!file.open(QIODevice::WriteOnly))
+    {
+      QMessageBox::warning(this, tr("Error"), tr("failed to create temporary files."));
+      return;
+    }
+
+    QWidget* widget = m_tabs->widget(i);
+    QTextEdit* textedit = qobject_cast<QTextEdit*>(widget);
+
+    if(textedit)
+    {
+      QString content = textedit->document()->toPlainText();
+      file.write(content.toUtf8());
+    }
+    file.close();
+
+    openedFiles.append(tempFile);
+  }
+
+  if(!openedFiles.isEmpty() && !QProcess::startDetached(editorPath, openedFiles))
+  {
+    QMessageBox::warning(this, tr("Error"), tr("Failed to launch external editor"));
+  }
+}
+
 }