Collapse-O/Pro-Matic Highlander Must Be One
As of Collapse-O-Matic version 1.7.2 and Collapse-Pro-Matic version 1.3.2 we have added the ability to force one element to stay open in a highlander grouping. Simply add the class must-be-one to all the triggers in a highlander group using the trigclass attribute like so: Shortcode Monkeys… Donkeys… Ninjas… Example