Hello there, @gilbert16130 ...
Unfortunately, I am not aware that this kind of functionality exists for Canvas Studio videos. The best advice I could offer is that your students will have to use the controls on the video to scrub through the video's timeline to get to the point they need to. I know...not ideal...but it's the best I can think of.
You might want to submit this as a new Feature Idea. From any page here in the Community, go to "PRODUCT" >> "IDEA CONVERSATIONS". Then, click on the red "Suggest an idea".
I know this isn't the answer you were probably looking for, but I hope that it has helped in some way to answer your question. Take care, stay safe, and be well.
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