The settings of the program allow controlling what and how images and music will be displayed in the slideshow.
You can have different configurations and save them on different files. Later you can invoke the slideshow with a particular configuration by simply double clicking the file where you saved the particular settings.
To save settings to a file use the button labeled "Save setup..." at the bottom of the Settings window. Choose a file name and a location anywhere in your hard disk that later you can access easily to invoke that particular configuration.
This may be a convenient method to have presentations of specific collection of photographs, maybe with moderated or no effects (see the tab "Image Effects")