You sould be able to edit other peoples tags on your script. I can do it on mine
There is two types still missing that groundspeak considers event
the full list of event caches is
"Event Cache",
"Cache In Trash Out Event",
"Lost and Found Event Cache",
"Mega-Event Cache",
"Groundspeak Block Party",
"Giga-Event Cache",
"Groundspeak Lost and Found Celebration"
The correct tag will be. I man not sure the last one works it had no short name but I think the core accept long full names
{
"key": "country",
"limit": "3",
"property": "type",
"propValue": "EVENT,MEGA,GIGA,CITO,LOSTANDFOUND,BLOCKPARTY,Groundspeak Lost and Found Celebration"
}