diff --git a/mainwindow.ui b/mainwindow.ui
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -16,7 +16,7 @@
   <widget class="QWidget" name="centralWidget">
    <layout class="QVBoxLayout" name="verticalLayout_2">
     <item>
-     <widget class="QwtPlot" name="plot" native="true">
+     <widget class="QwtPlot" name="plot">
       <property name="sizePolicy">
        <sizepolicy hsizetype="Preferred" vsizetype="Expanding">
         <horstretch>0</horstretch>
@@ -304,6 +304,35 @@
         </item>
        </layout>
       </widget>
+      <widget class="QWidget" name="tabLog">
+       <attribute name="title">
+        <string>Log</string>
+       </attribute>
+       <attribute name="toolTip">
+        <string>Error and Warning Messages</string>
+       </attribute>
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <property name="leftMargin">
+         <number>4</number>
+        </property>
+        <property name="topMargin">
+         <number>4</number>
+        </property>
+        <property name="rightMargin">
+         <number>4</number>
+        </property>
+        <property name="bottomMargin">
+         <number>4</number>
+        </property>
+        <item>
+         <widget class="QPlainTextEdit" name="ptLog">
+          <property name="readOnly">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </widget>
      </widget>
     </item>
    </layout>
@@ -392,7 +421,7 @@
  <customwidgets>
   <customwidget>
    <class>QwtPlot</class>
-   <extends>QWidget</extends>
+   <extends>QFrame</extends>
    <header>qwt_plot.h</header>
    <container>1</container>
   </customwidget>