First goal of 'bookmarking' is to enable micro-navigation. However New Captivate can only create static bookmarks. It is not possible to create dynamic bookmarks generated on runtime. This was possible using the Movie Control category of system variables combined with Movie Information variables. Examples for the Adobe forum:
1. Having a button on a long (video) slide allowing to move to a Help slide, and come back to resume the video where it was left.
2. Having a button which allows to navigate forward or back for a time segment (like 20secs) on a long slide whenever it was clicked.