I would like to use java script to be able to do different things depending on where the person clicked on a Heat Map. I suppose I can do this using X and Y coordinates, but I'd rather use regions. Is there are way to refer to regions inside the survey? Thank you!

A heatmap is an SVG, and you can't really do anything with it using JavaScript. However, in the survey flow you can set up branch conditions based on whether a region is clicked.

Ah, OK. Thank you for you help.