Customize slideshow buttons Archos 7 Home Tablet

I made a simple slideshow presentation using my Archos 7 Home Tablet.
However, whenever I move on to the next slide, I had to swipe the screen rather than press a simple button. I find it inconvenient.
The same is true when I made a PowerPoint macro enabled slideshow presentation.
Again, I had to swipe rather than press a button.
I need your help on how to customize slideshow buttons for easier access to my slides.
Thank you very much.
