diff --git a/mainwindow.ui b/mainwindow.ui
index 75ae7d1a7..e93776d93 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -646,6 +646,19 @@ QLabel[oob="true"] {
                </item>
                <item row="2" column="0">
                 <layout class="QHBoxLayout" name="horizontalLayout_4">
+                 <item>
+                  <spacer name="horizontalSpacer">
+                   <property name="orientation">
+                    <enum>Qt::Horizontal</enum>
+                   </property>
+                   <property name="sizeHint" stdset="0">
+                    <size>
+                     <width>40</width>
+                     <height>20</height>
+                    </size>
+                   </property>
+                  </spacer>
+                 </item>
                  <item>
                   <widget class="QPushButton" name="pbR2T">
                    <property name="sizePolicy">
@@ -712,6 +725,19 @@ QLabel[oob=&quot;true&quot;] {
                    </property>
                   </widget>
                  </item>
+                 <item>
+                  <spacer name="horizontalSpacer_4">
+                   <property name="orientation">
+                    <enum>Qt::Horizontal</enum>
+                   </property>
+                   <property name="sizeHint" stdset="0">
+                    <size>
+                     <width>40</width>
+                     <height>20</height>
+                    </size>
+                   </property>
+                  </spacer>
+                 </item>
                 </layout>
                </item>
                <item row="5" column="1">