To add a video for Manfred Dreilich / Mozarts Diversion (after Se vuol ballare from Le Nozze di Figaro), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Manfred Dreilich / Mozarts Diversion (after Se vuol ballare from Le Nozze di Figaro)