Howdy Charles!
I would love to help you with this.
Our existing shortcode is built around the premis that you have given it an ID or a slug. We should definitely make it not require that in the future. Until then though adding your own “next” shortcode that’s entirely separate is pretty easy.
Paste the following snippet at the top of your theme’s functions.php file. Replace the opening “<?php” with this snippet, as this snippet includes that opening tag.
https://gist.github.com/elimn/a14a3042ce253a594416cfbe454c652d
And there you have it, you should have a [tribe_event_countdown_next] shortcode available now.
Does that all make sense? Will that work for you? Please let me know.
Cheers!
– Brook