">     <property name="visible">True</property>     <property name="homogeneous">False</property>     <property name="spacing">0</property>      <child>       <widget class="GtkScrolledWindow" id="scrolledwindow00">         <property name="visible">True</property>         <property name="can_focus">True</property>         <property name="hscrollbar_policy">GTK_POLICY_AUTOMATIC</property>         <property name="vscrollbar_policy">GTK_POLICY_AUTOMATIC</property>         <property name="shadow_type">GTK_SHADOW_IN</property>         <property name="window_placement">GTK_CORNER_TOP_LEFT</property>          <child>    <widget class="GtkTreeView" id="sourceList">      <property name="visible">True</property>      <property name="can_focus">True</property>      <property name="headers_visible">