diff --git a/sleepyhead/Graphs/MinutesAtPressure.cpp b/sleepyhead/Graphs/MinutesAtPressure.cpp
index 58302b31..18cd1f5f 100644
--- a/sleepyhead/Graphs/MinutesAtPressure.cpp
+++ b/sleepyhead/Graphs/MinutesAtPressure.cpp
@@ -215,6 +215,10 @@ void MinutesAtPressure::paint(QPainter &painter, gGraph &graph, const QRegion &r
         if (r < h+4) {
             r = double(height+3) / (peak/1200.0);
             g = 20.0;
+            if (r < h+4) {
+                r = double(height+3) / (peak/2400.0);
+                g = 40.0;
+            }
         }
         yp = bot;
         for (float f=0.0; f<=peak/60.0+0.01; f+=g) {
diff --git a/sleepyhead/SleepLib/profiles.h b/sleepyhead/SleepLib/profiles.h
index b365a753..edc83631 100644
--- a/sleepyhead/SleepLib/profiles.h
+++ b/sleepyhead/SleepLib/profiles.h
@@ -304,6 +304,7 @@ const QString STR_CS_AHIReset = "AHIReset";
 const QString STR_CS_ClockDrift = "ClockDrift";
 const QString STR_CS_LeakRedline = "LeakRedline";
 const QString STR_CS_ShowLeakRedline = "ShowLeakRedline";
+const QString STR_CS_AllowEventRenaming = "AllowEventRenaming";
 
 const QString STR_CS_CalculateUnintentionalLeaks = "CalculateUnintentionalLeaks";
 const QString STR_CS_4cmH2OLeaks = "Custom4cmH2OLeaks";
@@ -574,6 +575,8 @@ class CPAPSettings : public ProfileSettings
         initPref(STR_CS_4cmH2OLeaks, 20.167);
         initPref(STR_CS_20cmH2OLeaks, 48.333);
 
+        initPref(STR_CS_AllowEventRenaming, false);
+
         initPref(STR_CS_ClockDrift, (int)0);
         m_clock_drift = getPref(STR_CS_ClockDrift).toInt();
     }
@@ -606,6 +609,7 @@ class CPAPSettings : public ProfileSettings
     bool resyncFromUserFlagging() const { return getPref(STR_CS_ResyncFromUserFlagging).toBool(); }
     bool autoImport() const { return getPref(STR_CS_AutoImport).toBool(); }
     bool brickWarning() const { return getPref(STR_CS_BrickWarning).toBool(); }
+    bool allowEventRenaming() const { return getPref(STR_CS_AllowEventRenaming).toBool(); }
 
     bool calculateUnintentionalLeaks() const { return getPref(STR_CS_CalculateUnintentionalLeaks).toBool(); }
     double custom4cmH2OLeaks() const { return getPref(STR_CS_4cmH2OLeaks).toDouble(); }
@@ -643,6 +647,7 @@ class CPAPSettings : public ProfileSettings
     void setResyncFromUserFlagging(bool b) { setPref(STR_CS_ResyncFromUserFlagging, b); }
     void setAutoImport(bool b) { setPref(STR_CS_AutoImport, b); }
     void setBrickWarning(bool b) { setPref(STR_CS_BrickWarning, b); }
+    void setAllowEventRenaming(bool b) { setPref(STR_CS_AllowEventRenaming, b); }
 
     void setCalculateUnintentionalLeaks(bool b) { setPref(STR_CS_CalculateUnintentionalLeaks, b); }
     void setCustom4cmH2OLeaks(double val) { setPref(STR_CS_4cmH2OLeaks, val); }
diff --git a/sleepyhead/preferencesdialog.ui b/sleepyhead/preferencesdialog.ui
index 24496c9b..5df0c2ed 100644
--- a/sleepyhead/preferencesdialog.ui
+++ b/sleepyhead/preferencesdialog.ui
@@ -9,8 +9,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>826</width>
-    <height>600</height>
+    <width>845</width>
+    <height>656</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -1244,6 +1244,13 @@ Defaults to 60 minutes.. Highly recommend it's left at this value.</string>
               </item>
              </widget>
             </item>
+            <item row="3" column="2" colspan="2">
+             <widget class="QCheckBox" name="allowEventRenaming">
+              <property name="text">
+               <string>Allow Event Renaming</string>
+              </property>
+             </widget>
+            </item>
            </layout>
           </widget>
          </item>