\usemodule[visual]

\setuppapersize[A6][A6,oversized]

\setuplayout
   [location=middle,
	marking=on,
	grid=yes]

\setuppagenumbering
  [alternative=doublesided]

\starttext

\definelayer
  [page]
  [width=\paperwidth,
   height=\paperheight]

\definelayer
  [footer]
  [width=\textwidth,
   height=\footerheight]

\setupbackgrounds
  [page]
  [background=page,
   state=start]

\setupbackgrounds
  [footer][text]
  [background=footer,
   state=start]

\setupfooter[strut=no]

\useMPlibrary[dum]

\showframe[frame=on]

\dorecurse{10} {

    test

    \page[left]

    \setlayer
      [page]
      [x=-2mm,
       y=-2mm,
       preset=lefttop]
      {\externalfigure
         [bogus]
         [width=\dimexpr\paperwidth+2mm,
          height=\dimexpr\paperheight+4mm]
         [frame=on]}

    \setlayerframed
      [footer]
      [preset=leftbottom]
      [frame=off,
       align=normal,
       background=color,
       backgroundcolor=white]
      {\fakewords{#1}{#1}}

    \page[empty]

    test

}

\stoptext