Thanks for adding the HTML option back, however at the moment it's all a mass of text jumbled together, whereas it was neatly in sections before, so was easier to find where I wanted to edit.
Also whenever I edit something in the new HTML section, the page automatically jumps further up the html section and I have to scroll down again to find where I was editing.
The youtube playlists are still not being accepted either in the new html, as it shows in the preview, but then when I click save, it disappears.