Does powerpoint support on screen buttons for touch screen computers?

Hello Mavnav,

this is certainly possible. You can create navigation buttons from any shape in the powerpoint Shape library. Just add a shape to your slide and use the Trigger animation to tell powerpoint what you would like to do. For example: go to next slide or display a picture.

We have used triggers in many of our presentations. The beautiful thing about them is that you can navigate through your presentation forever, without ever getting to the end.

Here is a tutorial (with free downloadable example) and a demo video of what you can achieve with triggers:

http://www.powerpointinfographics.com/blogs/news/6729200-how-to-create-an-image-slider-picture-carousel

Or another demo with so called Actions:

http://www.powerpointinfographics.com/blogs/news/7051792-new-york-times-tax-burden-visualisation-in-powerpoint

You can use both techniques to create your result. If you need help, just contact me via our site.

Jeroen Breugelmans

powerpointinfographics.com

A touchscreen is going to behave pretty much like a mouse for this purpose.  Touching it during a slideshow is the same as clicking in the same spot with a mouse.  

A main show with clickable (touchable) links to other shows should work out well.  If you put an End Show link in the subsidiary shows, they'll quit, leaving you back at the main show.

Forward/backward buttons are easy.  Add them to the master and they'll appear (and work) on every slide in the show.  To add, use Insert | Shapes and pick the action button shapes.

Not sure what you mean by dashboard function; there isn't one as such, but describe how you'd want it to function; maybe PPT can do it.