All of your saved widgets will show up on the left hand side of the screen. When you first open the module, that list will be empty. Start by finding the embed code you would like to use. An example would be an embed from YouTube like this one:

<iframe width="560" height="315" src="//www.youtube.com/embed/l8YaMK4-MYg" frameborder="0" allowfullscreen></iframe>

1. Copy the iframe code by highlighting it and right clicking.
2. Paste it into the embed text box by using ctrl+v on your keyboard.
3. Give your widget a title
4. Give your widget a description (optional)
5. Give your widget a date (optional)
6. Give your widget a height and width. (optional) Note: Usually content pages are anywhere from 500-1000 pixels wide.
7. Press Save
8. Your video will display on the page.