Allow user to be able to rewind back on a slide, but not forward, until the whole slide has played

Hi Lisa,

Happy to help!

There isn't a way to restrict the seekbar so that it can will only rewind the timeline, but one workaround that you can do is to enable the conditional seekbar for your course. With this option enabled, the seekbar is locked the first time learners view the slide, but will have full access to the seekbar as soon as they complete it. You can read more about this here: 

• Storyline 360: How to Use the Conditional Seekbar

I'll also let other members chime in to see if any of them have Javascript or CSS solutions that they can share to help you out!