I start with a note that you should test out how this misc effects with the equipment you are going to use with the audience, before you show the presentation to an audience.
I create a new presentation and add a video, then open Custom Animations, add effect, and I change the category to Misc Effects.
I set my first effect to be toggle pause, the the video will show on the slide, but be paused, then I add another effect to start the media (which means start from the beginning) on click. I add a few more effects and play the slideshow on my computer with a single display.
When I add another display, and replay this same slideshow, the video is not seen until I click and the video starts to play. The pause and start from beginning work as expected, but this effect does not work the same as when I had a single screen.