YouTube Player Setup
All that's required to set up the video is to enter the YouTube ID and set the maximum width. For more control there are checkboxes to show/hide the indiviual control bar items and the various video player functions.
Controls
The controls are the large play button, the play button, progress bar, current time, mute buttom, volume control, settings button and the fullscreen button.
Player functions
There is control for setting the initial volume and checkboxes for auto pause, autoplay and muted.
If the aspect ratio of the video file is anything other than the default 16:9, there is a control to change it and prevent letter boxing.
Text
The text area is optional but is really essential for SEO and should be used to enter the video title and a brief description of the video content with suitable keywords.