Run a PPS on button click within a PPS

  • I can't seem to find the Macro code to open a PPS file from within a PPS.

    In essence I have a "Selection Screen" pps. When the user runs this it has several buttons that wehn clicked will open separate pps files.

    I can only open presentations and they are in edit mode. I just want it the same as double clicking a pps/ppsm file.

    Any clues?