How to Expand only One at a time?

https://plugins.twinpictures.de/plugins/collapse-o-matic/documentation/

A little ways down you’ll find the “highlander” attribute.

It works like a charm. ??

Perfect! Now I get the “There can be only one” reference. Nice.

Make sure to mark this resolved. ?? Glad I could help.

“highlander” attribute solves this. Thanks!

Issue resolved! Vote for Pedro!

Highlander doesn’t work for me – do you have to have the pro version for this feature?

nm – i got it to work – viewing it in visual mode added span tags inside my rel tag – great plugin – thanks!

Yeah, always a good idea to edit in TEXT mode when working with shortcodes. Glad you got this issue working. Marked as resolved.