diff --git a/BrainATUMtome/mainwindow.h b/BrainATUMtome/mainwindow.h
index 5aed6bc..e330d85 100644
--- a/BrainATUMtome/mainwindow.h
+++ b/BrainATUMtome/mainwindow.h
@@ -21,7 +21,7 @@ class MainWindow : public QMainWindow
     Q_OBJECT
 
 public:
-    explicit MainWindow(QWidget *parent = 0);
+    explicit MainWindow(QWidget *parent = nullptr);
     ~MainWindow();
 
 private:
diff --git a/BrainATUMtome/mainwindow.ui b/BrainATUMtome/mainwindow.ui
index 24f32f1..699f9ac 100644
--- a/BrainATUMtome/mainwindow.ui
+++ b/BrainATUMtome/mainwindow.ui
@@ -20,8 +20,8 @@
    <string>MainWindow</string>
   </property>
   <widget class="QWidget" name="centralWidget">
-   <layout class="QHBoxLayout" name="horizontalLayout_4">
-    <item>
+   <layout class="QGridLayout" name="gridLayout_7">
+    <item row="0" column="0" rowspan="2">
      <layout class="QVBoxLayout" name="verticalLayout">
       <item>
        <widget class="QGroupBox" name="groupBox_epos">
@@ -440,7 +440,7 @@
       </item>
      </layout>
     </item>
-    <item>
+    <item row="0" column="1">
      <widget class="GraphicsViewFrame" name="widget_viewFrame" native="true">
       <property name="sizePolicy">
        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
@@ -451,11 +451,30 @@
       <property name="minimumSize">
        <size>
         <width>820</width>
-        <height>520</height>
+        <height>400</height>
        </size>
       </property>
      </widget>
     </item>
+    <item row="1" column="1">
+     <widget class="QGroupBox" name="groupBox_2">
+      <property name="title">
+       <string>Log</string>
+      </property>
+      <layout class="QGridLayout" name="gridLayout_6">
+       <item row="0" column="0">
+        <widget class="QPlainTextEdit" name="plainTextEdit_log">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </item>
    </layout>
   </widget>
   <widget class="QMenuBar" name="menuBar">