How can my reviewer view the course again?

It sounds like Captivate is remembering where they left off and returning the reviewer to it. Captivate makes it a bit hard to override that setting. What might be easier is to reset (delete) the SCORM data which will remove the bookmarking/suspend data. This article will explain that: https://blog.reviewmyelearning.com/scorm-log-lets-peek-under-the-hood/