I am new to Lightroom and am using it on a MAC. I would like to know how , when creating a slideshow, how you can place different captions on slides. When I have tried to use the caption , it places the same words on every slide which is not what I want. I like to be able to identify some of the slides for the enjoyment of those viewing the show. In the advertising for Lightroom, it seems to indicate that this could be dope but I have not been able to find out how, in any of the on-line instruction books.