Исправил кнопку в меню списка ос

ubl-settings-bootloader.glade

@@ -128,6 +128,17 @@
     </child>
   </object>
   <object class="GtkBox" id="boxMenuLevel1">
+    <property name="visible">True</property>
+    <property name="can-focus">False</property>
+    <child>
+      <object class="GtkButton" id="btnToL2AndLv3">
+        <property name="width-request">1</property>
+        <property name="height-request">1</property>
+        <property name="visible">True</property>
+        <property name="can-focus">True</property>
+        <property name="receives-default">True</property>
+        <child>
+          <object class="GtkBox">
             <property name="visible">True</property>
             <property name="can-focus">False</property>
             <child>
@@ -145,13 +156,6 @@
                 <property name="position">0</property>
               </packing>
             </child>
-    <child>
-      <object class="GtkButton" id="btnToL2AndLv3">
-        <property name="width-request">1</property>
-        <property name="height-request">1</property>
-        <property name="visible">True</property>
-        <property name="can-focus">True</property>
-        <property name="receives-default">True</property>
             <child>
               <object class="GtkMenuButton">
                 <property name="visible">True</property>
@@ -168,10 +172,17 @@
                   <class name="nobg"/>
                 </style>
               </object>
+              <packing>
+                <property name="expand">False</property>
+                <property name="fill">True</property>
+                <property name="position">1</property>
+              </packing>
+            </child>
+          </object>
         </child>
       </object>
       <packing>
-        <property name="expand">False</property>
+        <property name="expand">True</property>
         <property name="fill">True</property>
         <property name="position">1</property>
       </packing>