diff --git a/oscar/SleepLib/appsettings.h b/oscar/SleepLib/appsettings.h
index 6fc1dedc..dc42a158 100644
--- a/oscar/SleepLib/appsettings.h
+++ b/oscar/SleepLib/appsettings.h
@@ -46,6 +46,7 @@ const QString STR_AS_UsePixmapCaching = "UsePixmapCaching";
 const QString STR_AS_AllowYAxisScaling = "AllowYAxisScaling";
 const QString STR_AS_IncludeSerial = "IncludeSerial";
 const QString STR_AS_MonochromePrinting = "PrintBW";
+const QString STR_AS_AllowDisableSessions = "AllowDisableSessions";
 const QString STR_AS_GraphTooltips = "GraphTooltips";
 const QString STR_AS_LineThickness = "LineThickness";
 const QString STR_AS_LineCursorMode = "LineCursorMode";
@@ -137,6 +138,8 @@ public:
   bool includeSerial() const { return getPref(STR_AS_IncludeSerial).toBool(); }
   //! \brief Whether to print reports in black and white, which can be more legible on non-color printers
   bool monochromePrinting() const { return getPref(STR_AS_MonochromePrinting).toBool(); }
+  //! \Allow disabling of sessions
+  bool allowDisableSessions() const { return getPref(STR_AS_AllowDisableSessions).toBool(); }
   //! \brief Whether to show graph tooltips
   inline bool graphTooltips() const { return m_graphTooltips; }
   //! \brief Pen width of line plots
@@ -196,6 +199,7 @@ public:
   void setIncludeSerial(bool b) { setPref(STR_AS_IncludeSerial, b); }
   //! \brief Sets whether to print reports in black and white, which can be more legible on non-color printers
   void setMonochromePrinting(bool b) { setPref(STR_AS_MonochromePrinting, b); }
+  void setAllowDisableSessions(bool b) { setPref(STR_AS_AllowDisableSessions,b); }
   //! \brief Sets whether to allow double clicking on Y-Axis labels to change vertical scaling mode
   void setGraphTooltips(bool b) { setPref(STR_AS_GraphTooltips, m_graphTooltips=b); }
   //! \brief Sets the type of overlay flags (which are displayed over the Flow Waveform)
diff --git a/oscar/preferencesdialog.cpp b/oscar/preferencesdialog.cpp
index 8e049887..7f1b9889 100644
--- a/oscar/preferencesdialog.cpp
+++ b/oscar/preferencesdialog.cpp
@@ -219,6 +219,7 @@ PreferencesDialog::PreferencesDialog(QWidget *parent, Profile *_profile) :
     ui->allowYAxisScaling->setChecked(AppSetting->allowYAxisScaling());
     ui->includeSerial->setChecked(AppSetting->includeSerial());
     ui->monochromePrinting->setChecked(AppSetting->monochromePrinting());
+    ui->allowDisableSessions->setChecked(AppSetting->allowDisableSessions());
 
     ui->autoLaunchImporter->setChecked(AppSetting->autoLaunchImport());
 #ifndef NO_CHECKUPDATES
@@ -831,6 +832,7 @@ bool PreferencesDialog::Save()
     AppSetting->setAllowYAxisScaling(ui->allowYAxisScaling->isChecked());
     AppSetting->setIncludeSerial(ui->includeSerial->isChecked());
     AppSetting->setMonochromePrinting(ui->monochromePrinting->isChecked());
+    AppSetting->setAllowDisableSessions(ui->allowDisableSessions->isChecked());
     AppSetting->setGraphTooltips(ui->graphTooltips->isChecked());
 
     AppSetting->setAntiAliasing(ui->useAntiAliasing->isChecked());
diff --git a/oscar/preferencesdialog.ui b/oscar/preferencesdialog.ui
index 57ea9db9..6b78dae0 100644
--- a/oscar/preferencesdialog.ui
+++ b/oscar/preferencesdialog.ui
@@ -2756,6 +2756,16 @@ Try it and see if you like it.</string>
                  </property>
                 </widget>
                </item>
+               <item>
+                <widget class="QCheckBox" name="allowDisableSessions">
+                 <property name="toolTip">
+                  <string>Allow sessions to be disabled.\nDisabled Session are not used for graphing or Statistics.</string>
+                 </property>
+                 <property name="text">
+                  <string>Allow Disable Sessions</string>
+                 </property>
+                </widget>
+               </item>
                <item>
                 <spacer name="verticalSpacer">
                  <property name="orientation">