diff --git a/Resources/InsaneWidget/XInsaneWidget.cpp b/Resources/InsaneWidget/XInsaneWidget.cpp
index 1d0b32b..0d9a649 100644
--- a/Resources/InsaneWidget/XInsaneWidget.cpp
+++ b/Resources/InsaneWidget/XInsaneWidget.cpp
@@ -400,6 +400,10 @@ XInsaneWidget::~XInsaneWidget() = default; // Important for mixing unique_ptr an
 
 void XInsaneWidget::Setup()
 {
+  // Restore known last values.
+  m_doubleSided = m_config->ReadBool("/Scanner/DoubleSided", false);
+  m_total = m_config->ReadLong("/Scanner/Total", 1);
+
   lblNewDoc->Bind ( wxEVT_RIGHT_UP, &XInsaneWidget::OnLblNewDocRightClick, this );
   txtNewDoc->Bind ( wxEVT_KEY_UP, &XInsaneWidget::OnTxtNewDocKeyPressed, this );
   
@@ -445,9 +449,9 @@ void XInsaneWidget::OnLblNewDocRightClick ( wxMouseEvent& evt )
     evt.Skip();
     return;
   }
-  wxCheckBox * cb = m_pageStack->AddCheckBox (_("Double sided:"),_T("/Scanner/DoubleSided") );
+  wxCheckBox * cb = m_pageStack->AddCheckBox (_("Double sided:"),_T("/Scanner/DoubleSided"), &m_doubleSided );
   cb->SetToolTip (_("Scan all front faces first, then all back faces in reverse order.") );
-  wxSpinCtrl * spn = m_pageStack->AddSpinCtrl (_("Total:"),_T("/Scanner/Total") );
+  wxSpinCtrl * spn = m_pageStack->AddSpinCtrl (_("Total:"),_T("/Scanner/Total"), &m_total );
   spn->SetRange ( 1, 50 );
   spn->SetToolTip (_("Total number of sides to scan (not total number of sheets).") );
   m_pageStack->ShowPopup();
@@ -515,15 +519,7 @@ void XInsaneWidget::OnBtnScanClick ( wxMouseEvent& evt )
   }
   const uint outputType = m_scannerWidget->GetScannerOutputType();
   bool adf = false;
-  bool doubleSided = false;
-  uint total = 1;
-  wxString paperSize = _T("A4");
-  if (m_config)
-  {
-    doubleSided = m_config->ReadBool("/Scanner/DoubleSided", false);
-    total = m_config->ReadLong("/Scanner/Total", 1);
-    m_config->Read("/Scanner/Last/PaperSize", &paperSize, "A4");
-  }
+  wxString paperSize = m_scannerWidget->GetPaperSize();
 
   wxFileName destFile(dest);
   const string deviceId = m_scannerWidget->GetCurrentDeviceId().ToStdString();
@@ -545,8 +541,8 @@ void XInsaneWidget::OnBtnScanClick ( wxMouseEvent& evt )
     m_scanProject->SetResolution(resolution);
     m_scanProject->SetOutputType(outputType);
     m_scanProject->SetPaperSize(paperSize);
-    m_scanProject->SetDoubleSided(doubleSided);
-    m_scanProject->SetTotalNumberOfSides(total);
+    m_scanProject->SetDoubleSided(m_doubleSided);
+    m_scanProject->SetTotalNumberOfSides((uint) m_total);
     if (m_stampWidgets)
     {
       m_stampDescriptors = m_stampWidgets->GetStampDescriptors();
diff --git a/Resources/InsaneWidget/XInsaneWidget.h b/Resources/InsaneWidget/XInsaneWidget.h
index e8c9bf3..a16b4d3 100644
--- a/Resources/InsaneWidget/XInsaneWidget.h
+++ b/Resources/InsaneWidget/XInsaneWidget.h
@@ -83,6 +83,9 @@ private:
   std::unique_ptr<InsaneWorker> m_insaneWorker;
   std::unique_ptr<BackgroundScannerDiscoveryEVH> m_backgroundScannerDiscoveryEvh;
   std::unique_ptr<ScanProjectHandler> m_scanProject;
+
+  bool m_doubleSided = false;
+  int m_total = 1;
   
   void OnLblNewDocRightClick ( wxMouseEvent& evt );
   void OnTxtNewDocKeyPressed ( wxKeyEvent& evt );
diff --git a/Resources/Utilities/ConfigEditorPopup.cpp b/Resources/Utilities/ConfigEditorPopup.cpp
index c4899a6..fc02f62 100644
--- a/Resources/Utilities/ConfigEditorPopup.cpp
+++ b/Resources/Utilities/ConfigEditorPopup.cpp
@@ -30,7 +30,8 @@ PopupTransientWindow* ConfigEditorPopup::CreatePopup()
   return m_popup;
 }
 
-wxCheckBox* ConfigEditorPopup::AddCheckBox ( const wxString& label, const wxString& configPath )
+wxCheckBox* ConfigEditorPopup::AddCheckBox ( const wxString& label, const wxString& configPath,
+                                    bool * clientVar)
 {
   wxASSERT_MSG ( ( m_config != nullptr ),_T("CONFIG IS nullptr") );
   wxString * cPath = new wxString ( configPath );
@@ -38,13 +39,22 @@ wxCheckBox* ConfigEditorPopup::AddCheckBox ( const wxString& label, const wxStri
   m_flxsz->Add ( lbl, 0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 0 );
   wxCheckBox * cb = new wxCheckBox ( m_pan, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxCHK_2STATE );
   m_flxsz->Add ( cb, 0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 0 );
-  cb->SetValue ( m_config->ReadBool ( configPath, false ) );
+  cb->SetValue ( (!clientVar) ? m_config->ReadBool ( configPath, false ) : *clientVar);
   cb->SetClientData ( cPath );
   cb->Bind ( wxEVT_DESTROY, &ConfigEditorPopup::OnControlDestroy, this );
+  if (clientVar)
+  {
+    cb->Bind(wxEVT_COMMAND_CHECKBOX_CLICKED, [cb, clientVar] (wxCommandEvent& evt)
+    {
+      *clientVar = cb->GetValue();
+    }
+    );
+  }
   return cb;
 }
 
-wxSpinCtrl* ConfigEditorPopup::AddSpinCtrl ( const wxString& label, const wxString& configPath )
+wxSpinCtrl* ConfigEditorPopup::AddSpinCtrl ( const wxString& label, const wxString& configPath,
+                                            int * clientVar)
 {
   wxASSERT_MSG ( ( m_config != nullptr ),_T("CONFIG IS nullptr") );
   wxString * cPath = new wxString ( configPath );
@@ -52,13 +62,22 @@ wxSpinCtrl* ConfigEditorPopup::AddSpinCtrl ( const wxString& label, const wxStri
   m_flxsz->Add ( lbl, 0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxGROW | wxALL, 0 );
   wxSpinCtrl * spn = new wxSpinCtrl ( m_pan, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxSP_ARROW_KEYS | wxALIGN_RIGHT, -100, 100 );
   m_flxsz->Add ( spn, 0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 0 );
-  spn->SetValue ( ( int ) m_config->ReadLong ( configPath, 0 ) );
+  spn->SetValue ((!clientVar) ? ( int ) m_config->ReadLong ( configPath, 0 ) : *clientVar);
   spn->SetClientData ( cPath );
   spn->Bind ( wxEVT_DESTROY, &ConfigEditorPopup::OnControlDestroy, this );
+  if (clientVar)
+  {
+    spn->Bind(wxEVT_COMMAND_SPINCTRL_UPDATED, [spn, clientVar] (wxSpinEvent& evt)
+    {
+      *clientVar = spn->GetValue();
+    }
+    );
+  }
   return spn;
 }
 
-wxTextCtrl* ConfigEditorPopup::AddTextCtrl ( const wxString& label, const wxString& configPath )
+wxTextCtrl* ConfigEditorPopup::AddTextCtrl ( const wxString& label, const wxString& configPath,
+                                      wxString * clientVar)
 {
   wxASSERT_MSG ( ( m_config != nullptr ),_T("CONFIG IS nullptr") );
   wxString * cPath = new wxString ( configPath );
@@ -66,9 +85,17 @@ wxTextCtrl* ConfigEditorPopup::AddTextCtrl ( const wxString& label, const wxStri
   m_flxsz->Add ( lbl, 0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxGROW | wxALL, 0 );
   wxTextCtrl * txt = new wxTextCtrl ( m_pan, wxID_ANY );
   m_flxsz->Add ( txt, 0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 0 );
-  txt->SetValue ( m_config->Read ( configPath, wxEmptyString ) );
+  txt->SetValue ( (!clientVar) ? m_config->Read ( configPath, wxEmptyString ) : *clientVar );
   txt->SetClientData ( cPath );
   txt->Bind ( wxEVT_DESTROY, &ConfigEditorPopup::OnControlDestroy, this );
+  if (clientVar)
+  {
+    txt->Bind(wxEVT_COMMAND_TEXT_UPDATED, [txt, clientVar] (wxCommandEvent& evt)
+    {
+      *clientVar = txt->GetValue();
+    }
+    );
+  }
   return txt;
 }
 
diff --git a/Resources/Utilities/ConfigEditorPopup.h b/Resources/Utilities/ConfigEditorPopup.h
index 41a83f2..c8fa6e2 100644
--- a/Resources/Utilities/ConfigEditorPopup.h
+++ b/Resources/Utilities/ConfigEditorPopup.h
@@ -27,9 +27,9 @@ public:
   virtual ~ConfigEditorPopup();
   PopupTransientWindow* CreatePopup();
   void ShowPopup();
-  wxCheckBox* AddCheckBox ( const wxString& label, const wxString& configPath );
-  wxSpinCtrl* AddSpinCtrl ( const wxString& label, const wxString& configPath );
-  wxTextCtrl * AddTextCtrl ( const wxString& label, const wxString& configPath );
+  wxCheckBox* AddCheckBox(const wxString& label, const wxString& configPath, bool * clientVar = nullptr);
+  wxSpinCtrl* AddSpinCtrl ( const wxString& label, const wxString& configPath, int * clientVar = nullptr );
+  wxTextCtrl * AddTextCtrl ( const wxString& label, const wxString& configPath, wxString * clientVar = nullptr );
 
 private:
   wxConfig * m_config = nullptr;