Paste a YouTube embed URL (the https://www.youtube.com/embed/... form, not the watch link) into Giftcard: Youtube - How to Video - Embeded URL Only. The gift card page then shows a How to ... Gift Card? button that opens your video in a popup. When this field is empty, the generic Sprwt tutorial video is shown instead, but only if Show 'How To' on website? (Theme > Kitchen) is set to Yes; if that setting is No and this field is empty, no how-to button appears at all.