Fixes

libublsettingsui-gtk3-filechooser.glade

@@ -134,6 +134,7 @@
             <property name="can-focus">True</property>
             <property name="receives-default">True</property>
             <property name="image">image2</property>
+            <accelerator key="Return" signal="clicked"/>
             <style>
               <class name="marginright"/>
             </style>

libublsettingsui-gtk3.glade

@@ -143,6 +143,12 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
                 <property name="visible">True</property>
                 <property name="can-focus">False</property>
                 <property name="orientation">vertical</property>
+                <child>
+                  <object class="GtkRevealer">
+                    <property name="visible">True</property>
+                    <property name="can-focus">False</property>
+                    <property name="transition-type">slide-up</property>
+                    <property name="reveal-child">True</property>
                     <child>
                       <object class="GtkBox" id="mainStatusBox">
                         <property name="visible">True</property>
@@ -209,6 +215,8 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
                           </packing>
                         </child>
                       </object>
+                    </child>
+                  </object>
                   <packing>
                     <property name="expand">False</property>
                     <property name="fill">True</property>