How do I add a video, music, tweet, instagram, or rich media?
- Create a new document or open an existing one.
- Enter edit mode and click
Insert -> Rich Media
- Paste a URL to the resource you'd like to embed
More information and some examples, here: https://authorea.com/users/3/articles/418699-embedding-videos-music-and-other-rich-media
Updated on: 01/08/2020