I'm new to this but I sort of managed to do something similar to what you describe, only with the adjustment to the temperature targets occuring at a specified time rather than location:
var tags = <#tags_[12|13|52|72|21]_N#>;
<@Set time@>.Task=function(){
KumoApp.Log("New parameters set");
tags.forEach(function (tag){
tag.setTempSensorThresholds(<%Minimum Temperature_N%>, <%Maximum Temperature_N%>);
});
}
It is by no means pretty but it seems to work.
Regards
Tom