just had a look at it. If I click to add a video the pop-up shows up and I can paste the link to YouTube and Vimeo. All good there but if I did click it by accident and don't want to add a video, it would be nice to be able to press Esc to remove it (a la Medium). Atm I need to click outside of the link paste box and delete the section manually.
The text selection and formatting seems to be working OK. When should we expect this feature to be rolled out to the main interface?