Decide when the slide must end
I have different objects on my slide (pictures, text etc). All of them have different length on time line (does anybody know why?). I have also speaker. I want that the duration of slide is equal to duration of speaker. The thing is that some objects are longer and it takes a lot of time to adjust them manually. Is there any option that I might have missed that can make this process easier. Timing option is not so good as I have to write how many seconds/minutes I want the object appear on the slide. I'd like to write instead that certain objects should appear for instance till 106 sec.
Thanks for help.