YouTube and Vimeo videos

You can now also specify the start time within the target video when embedding YouTube and Vimeo videos.

When changing the video URL, the dialog automatically fetches a preview image for the video and adjusts the video size according to the information it retrieves from YouTube and Vimeo, respectively.

Prezi presentations

The dedicated option for Prezi presentations has been removed. These can still be inserted with the generic Custom Web Content option.