diff --git a/src/plotcontrolpanel.ui b/src/plotcontrolpanel.ui
--- a/src/plotcontrolpanel.ui
+++ b/src/plotcontrolpanel.ui
@@ -17,7 +17,7 @@
    <item>
     <widget class="QWidget" name="widget" native="true">
      <property name="sizePolicy">
-      <sizepolicy hsizetype="Maximum" vsizetype="Preferred">
+      <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
        <horstretch>0</horstretch>
        <verstretch>0</verstretch>
       </sizepolicy>
@@ -41,14 +41,14 @@
       <item>
        <widget class="QTableView" name="tvChannelInfo">
         <property name="sizePolicy">
-         <sizepolicy hsizetype="MinimumExpanding" vsizetype="Expanding">
+         <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
         <property name="maximumSize">
          <size>
-          <width>300</width>
+          <width>30000</width>
           <height>170</height>
          </size>
         </property>
@@ -409,22 +409,6 @@
      </item>
     </layout>
    </item>
-   <item>
-    <spacer name="horizontalSpacer_2">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-     <property name="sizeType">
-      <enum>QSizePolicy::MinimumExpanding</enum>
-     </property>
-     <property name="sizeHint" stdset="0">
-      <size>
-       <width>1</width>
-       <height>20</height>
-      </size>
-     </property>
-    </spacer>
-   </item>
   </layout>
  </widget>
  <customwidgets>