A show can be screened to roll through automatically, or you can manually advance form one slide to the next. To control these settings, select Set up show from the Slide Show menu.
Select All or pick a range of slides, using the From option, you want to apply the changes to. Usually, you’ll want to apply changes to the entire presentation using All.
Set advance Slides Manually if you want to move from one slide to the next using the keyboard or mouse. This is usually the case if you are talking along with your presentation
Set advance slides Using timings if present if you want the slides to automatically move from to the next. The timings are set using the Slide transitions dialog.
Select Loop continuously if you want the presentation to repeat (for example a continuous rolling demo for point of sale purposes).
Set a Pen Color – this can be used to draw on a slide when running the show.