Seekbar - can I have it appear on specific slides | not all slides

That's what I'm doing. The user only chooses to go to those videos but what I would like is if they only need to see a small part of that video for them to be able to then skip to the section they need. I have 6 videos in this storyline and the first two they must watch. The last six I wanted them to be able to just skip to the exact point in the video that they needed. On the last ones they are basically they're putting what they learned in practice so I want them to only have to see what they need in the video. So I wanted those videos to just be a quick reference for them. each of those videos is only about a minute in length but it would still be nice if they could find what they needed to find. I teach in a k-12 school and so think of it as basically the first two videos are a lesson then they put it in practice (in accounting)  and the last four videos each one is the solution for a different problem. So I wanted them to be able to just jump to the part of the solution they were struggling with and be able to watch it.