1. Open or create a new video gallery. If you are creating a new gallery, be sure to select Video as the Media type.

2. Click the blue Upload button in the bottom-right corner of the gallery, and select From Link.

3. In the Link Video window, paste the URL of the Vimeo or YouTube video into the URL field. If the URL is valid, you should see a preview of the video appear below: 

4. Click Add to add the video to the gallery: