No Colum, I've since found it. (Actually I found a video by Bernard A. that explained a bit).
In the "Publish" pod are 5 choices (epub, html, etc) and selecting one highlights a button for settings. Edit settings has TWO tabs, one called Style Mappings which is where the button for Import/Export styles can be found.
There's a button there for Automap Paragraph Styles which I'm going to experiment with next.
Thanks for your efforts to solve my huge learning curve.