Gimp/menus/selection-menu.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE ui SYSTEM "gtkuimanager.dtd">

<ui>
  <popup action="selection-popup">
    <menuitem action="select-all" />
    <menuitem action="select-none" />
    <menuitem action="select-invert" />
    <menuitem action="vectors-selection-from-vectors" />
    <menuitem action="select-float" />
    <separator />
    <placeholder name="Outline">
      <menuitem action="select-feather" />
      <menuitem action="select-sharpen" />
      <menuitem action="select-shrink" />
      <menuitem action="select-grow" />
      <menuitem action="select-border" />
      <menuitem action="select-flood" />
    </placeholder>
    <separator />
    <menuitem action="select-save" />
    <menuitem action="vectors-selection-to-vectors-short" />
    <separator />
    <menuitem action="select-fill" />
    <menuitem action="select-stroke" />
  </popup>
</ui>