@panini In order to embed a video first go to your video source, youtube etc. As your video plays right click on the video screen and click on "Embed Code" A little code will pop up, right click on that and "copy" it.
Then come here to the reply box and click on the little film icon to the left side of the happy face. Paste the embed code and voila! I just figured all that out this morning. If I can do it, anyone can.