diff --git a/src/mainwindow.ui b/src/mainwindow.ui
index 52d996b..bf1ee19 100644
--- a/src/mainwindow.ui
+++ b/src/mainwindow.ui
@@ -27,75 +27,6 @@
     <property name="bottomMargin">
      <number>0</number>
     </property>
-    <item>
-     <widget class="QWidget" name="widget" native="true">
-      <property name="enabled">
-       <bool>true</bool>
-      </property>
-      <property name="sizePolicy">
-       <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
-        <horstretch>0</horstretch>
-        <verstretch>0</verstretch>
-       </sizepolicy>
-      </property>
-      <property name="minimumSize">
-       <size>
-        <width>0</width>
-        <height>20</height>
-       </size>
-      </property>
-      <layout class="QHBoxLayout" name="horizontalLayout">
-       <property name="spacing">
-        <number>0</number>
-       </property>
-       <property name="leftMargin">
-        <number>0</number>
-       </property>
-       <property name="topMargin">
-        <number>0</number>
-       </property>
-       <property name="rightMargin">
-        <number>0</number>
-       </property>
-       <property name="bottomMargin">
-        <number>0</number>
-       </property>
-       <item>
-        <spacer name="horizontalSpacer">
-         <property name="orientation">
-          <enum>Qt::Orientation::Horizontal</enum>
-         </property>
-         <property name="sizeHint" stdset="0">
-          <size>
-           <width>40</width>
-           <height>20</height>
-          </size>
-         </property>
-        </spacer>
-       </item>
-       <item>
-        <widget class="QToolButton" name="settingsButton">
-         <property name="text">
-          <string>...</string>
-         </property>
-         <property name="icon">
-          <iconset theme="QIcon::ThemeIcon::HelpAbout"/>
-         </property>
-        </widget>
-       </item>
-       <item>
-        <widget class="QToolButton" name="exitButton">
-         <property name="text">
-          <string>...</string>
-         </property>
-         <property name="icon">
-          <iconset theme="QIcon::ThemeIcon::ApplicationExit"/>
-         </property>
-        </widget>
-       </item>
-      </layout>
-     </widget>
-    </item>
     <item>
      <widget class="QSplitter" name="splitter">
       <property name="orientation">
@@ -118,6 +49,75 @@
         <property name="bottomMargin">
          <number>2</number>
         </property>
+        <item>
+         <widget class="QWidget" name="widget" native="true">
+          <property name="enabled">
+           <bool>true</bool>
+          </property>
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="minimumSize">
+           <size>
+            <width>0</width>
+            <height>20</height>
+           </size>
+          </property>
+          <layout class="QHBoxLayout" name="horizontalLayout">
+           <property name="spacing">
+            <number>0</number>
+           </property>
+           <property name="leftMargin">
+            <number>0</number>
+           </property>
+           <property name="topMargin">
+            <number>0</number>
+           </property>
+           <property name="rightMargin">
+            <number>0</number>
+           </property>
+           <property name="bottomMargin">
+            <number>0</number>
+           </property>
+           <item>
+            <widget class="QToolButton" name="settingsButton">
+             <property name="text">
+              <string>...</string>
+             </property>
+             <property name="icon">
+              <iconset theme="QIcon::ThemeIcon::HelpAbout"/>
+             </property>
+            </widget>
+           </item>
+           <item>
+            <spacer name="horizontalSpacer">
+             <property name="orientation">
+              <enum>Qt::Orientation::Horizontal</enum>
+             </property>
+             <property name="sizeHint" stdset="0">
+              <size>
+               <width>40</width>
+               <height>20</height>
+              </size>
+             </property>
+            </spacer>
+           </item>
+           <item>
+            <widget class="QToolButton" name="exitButton">
+             <property name="text">
+              <string>...</string>
+             </property>
+             <property name="icon">
+              <iconset theme="QIcon::ThemeIcon::ApplicationExit"/>
+             </property>
+            </widget>
+           </item>
+          </layout>
+         </widget>
+        </item>
         <item>
          <widget class="QTreeView" name="topLevelParticlesView">
           <property name="sizePolicy">