Calendar groups
 

I'm looking for a modification that allows all events be posted on one calendar, but color codes them to belong to certain groups. For instance all events that take place in one local region are red and other groups that take place in another region are blue. Or events that are open to everyone are in one color, but have an age requirement are in another color (I run a mom's group board so some events are only open to toddlers and others are only open to school age kids depending on the event).