You need the YouTube video code.
Either get this from the video URL:
or alternatively, use the "share" link on the video's page and remove the beginning bit.
- log in to the prospectus admin screen
- paste the code into the box marked
YouTube video code
- toggle the video on via the
Display the video profilecheckbox
And you are done.
Note that you need to add the code and toggle the video for it to appear on the subject page.