Make easy export for presentations

I use Inkscape to create presentations with impress . One example can be seen at https://sites.google.com/site/penseedivergente/support-de-formation . Doing such a presentation is simple, but very long to export slide by slide. It will be useful to have the possibility to manage layers (visibility, opacity, perhaps position in the tree) with something that can save "storyboard", with , for each slide, a definition of the parameters. Export all slides can then be done by one click....