merge slides in course presentations

I would love to have the opportunity to merge slides from different presentations.

For example: Two of my students prepared presentations with h5p about the topic "birds in northern Germany". This year, I want to use their creations to let others lern about it. Student A has some amazing find-the-hotspots in his presentation and a really good slide at the beginning, but the rest of it is partly not correct, so I shouldn't use it. Student B has some nice parts too, but also his work should not be used as whole. So, I would mark which slides I want to export and later create a new presentation where I import those slides from both students and re-arrange them. (It's a remix-culture). Important: The licenze has to stick with the slides and been shown afterwards: Slide 1,2,3: CC-BY student A; Slides 4,5,8: CC-BY student B; Slides 6,7: CC-BY teacher F.