For anyone else who may be looking for a way to do this - I did a tutorial on this a few weeks back - https://youtu.be/Y_jcgshXBrM?si=uiGPEHtStB4wuY7f
It doesn’t go into playlists - but does show one way you can play a specific video from a set of videos. I also have a video in my YT Unreal Tut Playlist - on how to automatically remove a video when it finishes playing.