System Variables, Please

Hi,

Our group is happily transitioning from Captivate to Storyline.  There are a few of us that are a bit more technical than others, and we've worked with Captivate's system variables to develop some advanced functionality.  We'd like to do the same with Storyline, but the available system variables seem to be a bit of a black hole.  I've searched the discussion boards, and the last post I could find was about 3 years old, so I'm hoping this has been addressed and there's a magical list of them somewhere?

Thanks!!