Index: sources/gui/qml/pages/pretreatment/PreTreatmentStack.qml
===================================================================
diff -u -rfb3c31821213807fb8d0e40f4840181f370c23e4 -r0975a67dd4e4673b9a7b226bfea02cbfa489c418
--- sources/gui/qml/pages/pretreatment/PreTreatmentStack.qml	(.../PreTreatmentStack.qml)	(revision fb3c31821213807fb8d0e40f4840181f370c23e4)
+++ sources/gui/qml/pages/pretreatment/PreTreatmentStack.qml	(.../PreTreatmentStack.qml)	(revision 0975a67dd4e4673b9a7b226bfea02cbfa489c418)
@@ -49,12 +49,13 @@
         if (visible) {
             rebuildMap()
             _mainMenu.hidden = true
-            _headerBar.titleText = qsTr("Setup Treatment")
+            _headerBar.activeStack = stackView
             _root.stackStepIndex = 0
+            _headerBar.userMode =  vSettings.advancedMode ?  qsTr("[Advanced]") : ""
         }
         else {
             stackView.initialItem = null
-            _headerBar.titleText = ""
+            _headerBar.userMode = ""
         }
     }
 
@@ -146,7 +147,7 @@
             return _pretreatmentInstallation.confirmButtonText()
         case PreTreatmentStack.Step.CreateRx:
             return _pretreatmentCreate.isFirstTab ? qsTr("Next") :
-                                                    qsTr("Validate")
+                                                    qsTr("Confirm")
         case PreTreatmentStack.Step.Connect:
             return qsTr("Start")
         default:
@@ -157,9 +158,8 @@
     function backEnabled() {
         switch ( stepKeys[_root.stackStepIndex] ) {
         case PreTreatmentStack.Step.Concentrates:
-            return true
         case PreTreatmentStack.Step.Installation:
-            return _pretreatmentInstallation.backEnabled()
+            return true
         case PreTreatmentStack.Step.CreateRx:
             return ! _pretreatmentCreate.isFirstTab
         default: