prevent scenario window to open if study is not saved

src/View/Translate.py

@@ -266,6 +266,16 @@ class MainTranslate(UnitTranslate):
             "incompatible study version"
         )
 
+
+        self._dict["mb_unsaved_study_title"] = _translate(
+            "MainWindow", "Open scenarios window"
+        )
+        self._dict["mb_unsaved_studyh_msg"] = _translate(
+            "MainWindow",
+            "You must save your study to open "
+            "the scenario windows"
+        )
+
         self._dict["x"] = _translate("MainWindow", "X (m)")
         self._dict["y"] = _translate("MainWindow", "Y (m)")
         self._dict["Yes"] = _translate("MainWindow", "Yes")