If you have multiple slideshows playing in a compound slideshow and users wish to jump to a certain report, they can't do it without either waiting for it to come around again or by exiting the slideshow and using the displagent UI to find it. Both methods arent ideal.
A way to allow a user to skip to a preferred report slideshow would be a great bit of UX for when it's deployed on touch screens or users can interact in other ways. Perhaps the Power BI app style side menu that just lists the names of slideshows you can choose?