Index: sources/gui/qml/pages/pretreatment/create/PreTreatmentCreate.qml
===================================================================
diff -u -rb38a0f4cf86482bb66ee69e1f809fb28b33edb4a -rcc7aae88f15228ff37b840946818692e444718bf
--- sources/gui/qml/pages/pretreatment/create/PreTreatmentCreate.qml	(.../PreTreatmentCreate.qml)	(revision b38a0f4cf86482bb66ee69e1f809fb28b33edb4a)
+++ sources/gui/qml/pages/pretreatment/create/PreTreatmentCreate.qml	(.../PreTreatmentCreate.qml)	(revision cc7aae88f15228ff37b840946818692e444718bf)
@@ -29,20 +29,18 @@
 PreTreatmentBase { id: _root
     objectName: "_PreTreatmentCreate" // SquishQt testability
 
-    header.backVisible      : true
     header.confirmVisible   : true
     title.visible           : false
+    header.backVisible      : ! vTreatmentCreate.parametersValidated
     header.confirmEnabled   : _preTreatmentCreateContent.confirmReady()
-    header.confirmText.text : vTreatmentCreate.parametersValidated ? qsTr("CONFIRM") : qsTr("VALIDATE")
+    header.confirmText.text : vTreatmentCreate.parametersValidated ? qsTr("CONFIRM") :
+                                                                     qsTr("VALIDATE")
+    onConfirmClicked        : vTreatmentCreate.parametersValidated ? _preTreatmentCreateContent.confirm() :
+                                                                     _preTreatmentCreateContent.validate()
+    onBackClicked           : vPreTreatmentAdjustmentInitTreatment.doCancel()
 
-    onConfirmClicked        : vTreatmentCreate.parametersValidated ? _preTreatmentCreateContent.confirm() : _preTreatmentCreateContent.validate()
-    onBackClicked           : vTreatmentCreate.parametersValidated ? vTreatmentCreate.doCancel() : vPreTreatmentAdjustmentInitTreatment.doCancel()
+    function clear( vValue ) { if ( ! vValue ) return;  _preTreatmentCreateContent.clear()  }
 
-    function clear( vValue ) {
-         if ( ! vValue ) return
-        _preTreatmentCreateContent.clear()
-    }
-
     PreTreatmentCreateContent { id: _preTreatmentCreateContent
         anchors {
             top         : _root.header.bottom