Create custom video slider

Since the original post 3 years ago, it came to my attention that the Video Controls can always be accessed via keyboard. So while covering the controls with a transparent shape does prevent accessing them with a mouse, that can't prevent someone from skipping ahead if they use their keyboard. (I edited my previous post to include this info.) 

The way to "rewind" the video would be to add a button that jumps to "this slide." Also, have the Slide Properties set to "Reset to initial state," so the video will play again from the start. 

This is demonstrated in the attached file, which also has triggers with conditions so the rewind button isn't visible until the video has been completed.

FYI: Clicking the video itself toggles between pausing it and playing it. Custom buttons could also be added to do that.

If you have additional questions about using videos, see the User Guide: Video Properties in Storyline 360 - E-Learning Heroes (articulate.com)