Hey Gary!
Thanks for continuing to help me out 
So right now it is possible to add a CMS collection to a slide - but, you can’t add a SINGLE CMS collection to all of the slides.
I have the top 10 news stories each day. And right now each single slide I have to place a brand new collection in. I can’t seem to filter each of the individual collections, that are separated by the slides, so that each news story for that day only shows up one time.
Breakdown:
Slide 1:
Collection 1
Slide 2:
Collection 2
Slide 3:
Collection 3
Now, each of those collections are separated and there isn’t a way to filter them all together so that stories aren’t showing up twice.