diff --git a/mainwindow.ui b/mainwindow.ui
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -344,6 +344,40 @@
        </attribute>
        <layout class="QHBoxLayout" name="horizontalLayout_5">
         <item>
+         <layout class="QFormLayout" name="formLayout_3">
+          <item row="0" column="0">
+           <widget class="QLabel" name="label_4">
+            <property name="text">
+             <string>Number Of Channels:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1">
+           <widget class="QSpinBox" name="spNumOfChannels">
+            <property name="minimumSize">
+             <size>
+              <width>60</width>
+              <height>0</height>
+             </size>
+            </property>
+            <property name="minimum">
+             <number>1</number>
+            </property>
+            <property name="maximum">
+             <number>32</number>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+        <item>
+         <widget class="Line" name="line_2">
+          <property name="orientation">
+           <enum>Qt::Vertical</enum>
+          </property>
+         </widget>
+        </item>
+        <item>
          <widget class="QGroupBox" name="groupBox">
           <property name="title">
            <string>Number Format:</string>
@@ -415,9 +449,12 @@
           <property name="orientation">
            <enum>Qt::Horizontal</enum>
           </property>
+          <property name="sizeType">
+           <enum>QSizePolicy::MinimumExpanding</enum>
+          </property>
           <property name="sizeHint" stdset="0">
            <size>
-            <width>445</width>
+            <width>20</width>
             <height>20</height>
            </size>
           </property>
@@ -557,7 +594,7 @@
      <x>0</x>
      <y>0</y>
      <width>653</width>
-     <height>20</height>
+     <height>23</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuFile">