Hi Maria -
I was looking for something that would help this as well. What I do is use a video that plays automatically in the slide timeline, and then I cover that with a transparent shape to make sure they can't interact with the video other than through the player buttons and seekbar.
I also use a shape appearing for .25 seconds on the timeline, rather than a cue point to show my interactive elements, because when I do things this way, I find the Storyline is inclusive of previous cue points if you jump ahead of them, so it will show the interactive elements, even if you don't want them to. I set the trigger to show the element when the state of that shape is normal.
Here's an example:
http://wkelearningdemos.s3.amazonaws.com/InteractiveVid/story_html5.htmlThe content is all over the place, but the functionality is what I'm talking about. You'll notice at points there are square, orange outlines that appear in the bottom right. Those are the manual "cue" points