Anyway, now for OO.org / Impress: my feeling is that you could write this as a UNO component. I havne’t looked too closely, but I don’t think you can “script” OpenOffice.org from the outside, like you can do on the Mac with Applescript and on Windows with VBA – for either PowerPoint or Keynote. For OO.org, plugins (UNO) can run on the inside, though, and have more functionality than plugins for Powerpoint, which are basically VBAscript document extensions…), so that would be an alternative way to accomplish the same.