re: I have searched the online documentation, but can not find how to set SiteShot as the fallback image… so that the uploaded image is used when one is available.
Looks like your shortcode is correct. It is the
However, you have
image="siteshot" set which tells the template to use SiteShot instead of the uploaded image. Since cMap displays the logo by default, remove this option. So, the shortcode should be:
[connections initial_results='FALSE' image_fallback="siteshot" image_single="siteshot" str_bio_head="Additional Info" str_bio_show="Additional Information" str_bio_hide="Close"]
This will display the logo is one exists and if not use SiteShot.
Hope that helps!