Add Checkbox to Lightbox in Event Calendar/Scheduler

I can’t add Checkbox to Lightbox. I’ve found instruction on how to do that (, but it’s unclear where to add extra bits of code, in what file… I was trying to find structure similar to :

[code]scheduler.locale.labels.section_checkme = “I’m going to participate”;

scheduler.config.lightbox.sections = [
{ name:“text”, height:50, map_to:“text”, type:“textarea”, focus:true },
{ name:“checkme”, map_to:“participation”, type:“checkbox”,
checked_value: “registrable”, unchecked_value: “unchecked”, height:40 },
{ name:“time”, height:72, type:“time”, map_to:“auto”}

and have found single occurrence of it in dhtmlxSchedulerConfigurator.php … Tried to add extra code in there - nothing… There was a result , but nothing I was expecting. At the moment I am not even sure those instructions are for that particular Event Calendar/Scheduler… :confused:

The above instruction is for the standalone scheduler, not for the WordPress|Joomla plugin

Aha! I thought so… Link in plugin had took me here so I assumed that’s the one… Thanks Stas!