Making video-URL required on 'add video' page

All options in this form are required, except the URL. How can we get this to be required as well?

http://www.seefeelchange.com/?page_id=11

 

Unfortunately there isn't a way to do that with our theme unless you custom code something up. Sorry.
If this isn't something you're able to do then you would need to hire a developer for this.