I am creating a slide that has up to 12 different shapes covering a picture. I want to be able to manually click on a shape and have it fade. I do not want to set a specific order but want to be able to click on a shape based on audience participation and have that shape fade. Is this possible? I haven't been able to figure out how to manually click on an object, while the slideshow is running and have that particular object fade based on a completely random choice.