diff --git a/src/mainwindow.ui b/src/mainwindow.ui
--- a/src/mainwindow.ui
+++ b/src/mainwindow.ui
@@ -129,8 +129,8 @@
     </property>
     <addaction name="actionBarPlot"/>
     <addaction name="separator"/>
+    <addaction name="actionHorizontal"/>
     <addaction name="actionVertical"/>
-    <addaction name="actionHorizontal"/>
    </widget>
    <addaction name="menuFile"/>
    <addaction name="menuSecondary"/>
@@ -264,6 +264,9 @@
    <property name="checkable">
     <bool>true</bool>
    </property>
+   <property name="checked">
+    <bool>true</bool>
+   </property>
    <property name="text">
     <string>Horizontal</string>
    </property>