Here's a demo of my latest project. Only the first two buttons on the playlist work. I created this playlist in Storyline 360. The video is a web object. When the video hits 8 seconds or more (you can change this to whatever value you want on the trigger) a feedback layer appears.
The feedback works with SCORM 2004 but you can also add in xAPI if you want. There are a few minor bugs but I am working them out.