Video is one of the best forms of communication on the Internet. Naturally, you may be looking to add a video to your proposal. Fortunately, it's a pretty painless process.
You can add a video to any field where you get a WYSIWYG editor (the full text editor with all of the formatting options). It will look like this:
Look for the highlighted video button above. Once you click it, you'll be greeted with a dialog box.
Currently, the Source text field will accept a URL from YouTube or Vimeo. Paste in a URL there and hit OK... then voila!