Marco, thanks for clearing this up.
Marco Wahl wrote at 20:42 on March 17, 2019: : : Possibly it's a good idea to realize the implementation of your idea : independent of C-c C-c. And postpone the binding with C-c C-c. I've developed something that initially started off as a predicate to be called and used by Lisp, but adding an interactive mode was easy and turns the whole thing into an Org add-on. There are no inherent dependencies. Binding with C-c C-c would just be a recommendation to users as a convenient and natural way to access the functionality. On this note: is this list the proper channel to publish initial versions of add-ons and solicit feedback? Regards Thoams