Media player playlist loop

HI, I have 9 videos in my Media Playlist and I have the 1-9 keys assigned to each one. I need to be able to hit for example the 3rd video by pressing 3 (which I have set up) but I want this video to loop until I hit another key. I can’t find a way to do this with the playlist? If any of you Geniuses can help me that that would be Awesome!

I have a feeling I am supposed to use set looping some how but I don’t know how to use it as there is no good documentation that I have found.