Hi @paul2009 and @tuanphan
I also would like to use the source-link feature to an external page (where you actually register for the event).
I followed your suggestion above of making the event a blog post instead, which worked fine on the blogs landing page but when it's on the calendar it links to the internal blog page not the preferred source URL.
Was thinking maybe instead of css I could try URL mapping to direct either the event url to the external link? Does that make sense?
Link to the site is: